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Finding the Fourth Proportional to 24,092.40, 36,138.60 and 12,428.40

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Solution

The fourth proportional to 24,092.40, 36,138.60 and 12,428.40 is: 18,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,092.40 : 36,138.60 = 12,428.40 : x
  2. Step 2: Convert to fraction form
    24,092.40/36,138.60 = 12,428.40/x
  3. Step 3: Cross multiply
    24,092.40x = 36,138.60 × 12,428.40
  4. Step 4: Simplify right side
    24,092.40x = 449,144,976.24
  5. Step 5: Solve for x
    x = 449,144,976.24/24,092.40
  6. Step 6: Final answer
    x = 18,642.60

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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.