Home / 22,720.32-31,358.88-15,264

Finding the Fourth Proportional to 22,720.32, 31,358.88 and 15,264

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Solution

The fourth proportional to 22,720.32, 31,358.88 and 15,264 is: 21,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.32 : 31,358.88 = 15,264 : x
  2. Step 2: Convert to fraction form
    22,720.32/31,358.88 = 15,264/x
  3. Step 3: Cross multiply
    22,720.32x = 31,358.88 × 15,264
  4. Step 4: Simplify right side
    22,720.32x = 478,661,944.32
  5. Step 5: Solve for x
    x = 478,661,944.32/22,720.32
  6. Step 6: Final answer
    x = 21,067.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.