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Finding the Fourth Proportional to 39,862, 59,818.92 and 15,238

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Solution

The fourth proportional to 39,862, 59,818.92 and 15,238 is: 22,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862 : 59,818.92 = 15,238 : x
  2. Step 2: Convert to fraction form
    39,862/59,818.92 = 15,238/x
  3. Step 3: Cross multiply
    39,862x = 59,818.92 × 15,238
  4. Step 4: Simplify right side
    39,862x = 911,520,702.96
  5. Step 5: Solve for x
    x = 911,520,702.96/39,862
  6. Step 6: Final answer
    x = 22,866.91

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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.