Home / 42,640.11-63,974.91-14,579.92

Finding the Fourth Proportional to 42,640.11, 63,974.91 and 14,579.92

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Solution

The fourth proportional to 42,640.11, 63,974.91 and 14,579.92 is: 21,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.11 : 63,974.91 = 14,579.92 : x
  2. Step 2: Convert to fraction form
    42,640.11/63,974.91 = 14,579.92/x
  3. Step 3: Cross multiply
    42,640.11x = 63,974.91 × 14,579.92
  4. Step 4: Simplify right side
    42,640.11x = 932,748,844.59
  5. Step 5: Solve for x
    x = 932,748,844.59/42,640.11
  6. Step 6: Final answer
    x = 21,874.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.