21 is what percent of 2465 - 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 2465 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 2465, so we can write it down as 100%=2465.
4. We know, that x% equals 21 of the output value, so we can write it down as x%=21.
5. Now we have two simple equations:
1) 100%=2465
2) x%=21
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%=2465/21
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21 is what percent of 2465

100%/x%=2465/21
(100/x)*x=(2465/21)*x       - we multiply both sides of the equation by x
100=117.38095238095*x       - we divide both sides of the equation by (117.38095238095) to get x
100/117.38095238095=x
0.85192697768763=x
x=0.85192697768763

now we have:
21 is 0.85192697768763% of 2465