Home / 21,279.40-31,936.10-9,593.52

Finding the Fourth Proportional to 21,279.40, 31,936.10 and 9,593.52

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Solution

The fourth proportional to 21,279.40, 31,936.10 and 9,593.52 is: 14,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279.40 : 31,936.10 = 9,593.52 : x
  2. Step 2: Convert to fraction form
    21,279.40/31,936.10 = 9,593.52/x
  3. Step 3: Cross multiply
    21,279.40x = 31,936.10 × 9,593.52
  4. Step 4: Simplify right side
    21,279.40x = 306,379,614.07
  5. Step 5: Solve for x
    x = 306,379,614.07/21,279.40
  6. Step 6: Final answer
    x = 14,397.94

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1.5x scale

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.