Dear all
I am trying to work out the cost of some steel pipe. The steel pipe in question is about 40 foot long is 9 5/8 inch wide and it weighs about 40 pounds per foot. The price in metric tonnes is about $1,400 but I need the price per metre the sum that I think I need is to divide 1,400 by 2204.62 (which is how many pounds in a metric ton) and then multiply by 40 ( pounds per foot) this give me a price of $25.40 which I then need to multiply by 3.281 to get the price per metre which gives me, 83.33 which does sound reasonable.
However, I have noticed that if I take 83.33 and try to work out the price per metric ton then its not the same. For example, the sum that I think I need is to multiply 83.33 with 3.281 then multiply by 2204.62 then divide by pounds per foot which in this case is 40 - well that gives me 15068 - however this cannot be right as its not the 1400 I started with. Can someone please advise me as to where I am going wrong because obviously somewhere along the line I have made a big mistake but im not sure if its with the first sum or the second.
Many Thanks
I am trying to work out the cost of some steel pipe. The steel pipe in question is about 40 foot long is 9 5/8 inch wide and it weighs about 40 pounds per foot. The price in metric tonnes is about $1,400 but I need the price per metre the sum that I think I need is to divide 1,400 by 2204.62 (which is how many pounds in a metric ton) and then multiply by 40 ( pounds per foot) this give me a price of $25.40 which I then need to multiply by 3.281 to get the price per metre which gives me, 83.33 which does sound reasonable.
However, I have noticed that if I take 83.33 and try to work out the price per metric ton then its not the same. For example, the sum that I think I need is to multiply 83.33 with 3.281 then multiply by 2204.62 then divide by pounds per foot which in this case is 40 - well that gives me 15068 - however this cannot be right as its not the 1400 I started with. Can someone please advise me as to where I am going wrong because obviously somewhere along the line I have made a big mistake but im not sure if its with the first sum or the second.
Many Thanks