Home / 15,960-21,904

Finding the Third Proportional to 15,960 and 21,904

Calculator

Solution

The third proportional to 15,960 and 21,904 is: 30,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960 : 21,904 = 21,904 : x
  2. Step 2: Convert to fraction form
    15,960/21,904 = 21,904/x
  3. Step 3: Cross multiply
    15,960x = 21,904 × 21,904
  4. Step 4: Simplify right side
    15,960x = 479,785,216
  5. Step 5: Solve for x
    x = 479,785,216/15,960
  6. Step 6: Final answer
    x = 30,061.73

Related Problems

Find third proportional to 7,980 and 10,952
Half scale
Find third proportional to 31,920 and 43,808
Double scale
Find third proportional to 15,962 and 21,907
Similar ratio
Find third proportional to 23,940 and 32,856
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.