87 is what percent of 21033 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 21033 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 21033, so we can write it down as 100%=21033.
4. We know, that x% equals 87 of the output value, so we can write it down as x%=87.
5. Now we have two simple equations:
1) 100%=21033
2) x%=87
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=21033/87
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 87 is what percent of 21033

100%/x%=21033/87
(100/x)*x=(21033/87)*x       - we multiply both sides of the equation by x
100=241.75862068966*x       - we divide both sides of the equation by (241.75862068966) to get x
100/241.75862068966=x
0.41363571530452=x
x=0.41363571530452

now we have:
87 is 0.41363571530452% of 21033