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Finding the Fourth Proportional to 38,862, 58,293.52 and 12,207.12

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Solution

The fourth proportional to 38,862, 58,293.52 and 12,207.12 is: 18,310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,862 : 58,293.52 = 12,207.12 : x
  2. Step 2: Convert to fraction form
    38,862/58,293.52 = 12,207.12/x
  3. Step 3: Cross multiply
    38,862x = 58,293.52 × 12,207.12
  4. Step 4: Simplify right side
    38,862x = 711,595,993.86
  5. Step 5: Solve for x
    x = 711,595,993.86/38,862
  6. Step 6: Final answer
    x = 18,310.84

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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.