21.13 is what percent of 2680 - 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 2680 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 2680, so we can write it down as 100%=2680.
4. We know, that x% equals 21.13 of the output value, so we can write it down as x%=21.13.
5. Now we have two simple equations:
1) 100%=2680
2) x%=21.13
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%=2680/21.13
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21.13 is what percent of 2680

100%/x%=2680/21.13
(100/x)*x=(2680/21.13)*x       - we multiply both sides of the equation by x
100=126.83388547089*x       - we divide both sides of the equation by (126.83388547089) to get x
100/126.83388547089=x
0.7884328358209=x
x=0.7884328358209

now we have:
21.13 is 0.7884328358209% of 2680