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Finding the Fourth Proportional to 39,861, 59,817.42 and 15,237

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Solution

The fourth proportional to 39,861, 59,817.42 and 15,237 is: 22,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861 : 59,817.42 = 15,237 : x
  2. Step 2: Convert to fraction form
    39,861/59,817.42 = 15,237/x
  3. Step 3: Cross multiply
    39,861x = 59,817.42 × 15,237
  4. Step 4: Simplify right side
    39,861x = 911,438,028.54
  5. Step 5: Solve for x
    x = 911,438,028.54/39,861
  6. Step 6: Final answer
    x = 22,865.41

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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.