21.87 is what percent of 68.13 - 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 68.13 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 68.13, so we can write it down as 100%=68.13.
4. We know, that x% equals 21.87 of the output value, so we can write it down as x%=21.87.
5. Now we have two simple equations:
1) 100%=68.13
2) x%=21.87
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%=68.13/21.87
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21.87 is what percent of 68.13

100%/x%=68.13/21.87
(100/x)*x=(68.13/21.87)*x       - we multiply both sides of the equation by x
100=3.1152263374486*x       - we divide both sides of the equation by (3.1152263374486) to get x
100/3.1152263374486=x
32.100396301189=x
x=32.100396301189

now we have:
21.87 is 32.100396301189% of 68.13