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Finding the Fourth Proportional to 30,526.38, 45,781.11 and 8,340.62

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Solution

The fourth proportional to 30,526.38, 45,781.11 and 8,340.62 is: 12,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,526.38 : 45,781.11 = 8,340.62 : x
  2. Step 2: Convert to fraction form
    30,526.38/45,781.11 = 8,340.62/x
  3. Step 3: Cross multiply
    30,526.38x = 45,781.11 × 8,340.62
  4. Step 4: Simplify right side
    30,526.38x = 381,842,612.78
  5. Step 5: Solve for x
    x = 381,842,612.78/30,526.38
  6. Step 6: Final answer
    x = 12,508.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.