Home / 21,961.97-30,332.14-14,876.09

Finding the Fourth Proportional to 21,961.97, 30,332.14 and 14,876.09

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Solution

The fourth proportional to 21,961.97, 30,332.14 and 14,876.09 is: 20,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.97 : 30,332.14 = 14,876.09 : x
  2. Step 2: Convert to fraction form
    21,961.97/30,332.14 = 14,876.09/x
  3. Step 3: Cross multiply
    21,961.97x = 30,332.14 × 14,876.09
  4. Step 4: Simplify right side
    21,961.97x = 451,223,569.43
  5. Step 5: Solve for x
    x = 451,223,569.43/21,961.97
  6. Step 6: Final answer
    x = 20,545.68

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1.5x scale

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.