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Finding the Fourth Proportional to 39,251, 58,862.10 and 12,947.96

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Solution

The fourth proportional to 39,251, 58,862.10 and 12,947.96 is: 19,417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,251 : 58,862.10 = 12,947.96 : x
  2. Step 2: Convert to fraction form
    39,251/58,862.10 = 12,947.96/x
  3. Step 3: Cross multiply
    39,251x = 58,862.10 × 12,947.96
  4. Step 4: Simplify right side
    39,251x = 762,144,116.32
  5. Step 5: Solve for x
    x = 762,144,116.32/39,251
  6. Step 6: Final answer
    x = 19,417.19

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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.