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Finding the Fourth Proportional to 39,930, 59,897.88 and 15,306

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Solution

The fourth proportional to 39,930, 59,897.88 and 15,306 is: 22,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930 : 59,897.88 = 15,306 : x
  2. Step 2: Convert to fraction form
    39,930/59,897.88 = 15,306/x
  3. Step 3: Cross multiply
    39,930x = 59,897.88 × 15,306
  4. Step 4: Simplify right side
    39,930x = 916,796,951.28
  5. Step 5: Solve for x
    x = 916,796,951.28/39,930
  6. Step 6: Final answer
    x = 22,960.10

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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.