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Finding the Fourth Proportional to 22,048.62, 30,425.52 and 12,489.47

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Solution

The fourth proportional to 22,048.62, 30,425.52 and 12,489.47 is: 17,234.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,048.62 : 30,425.52 = 12,489.47 : x
  2. Step 2: Convert to fraction form
    22,048.62/30,425.52 = 12,489.47/x
  3. Step 3: Cross multiply
    22,048.62x = 30,425.52 × 12,489.47
  4. Step 4: Simplify right side
    22,048.62x = 379,998,619.27
  5. Step 5: Solve for x
    x = 379,998,619.27/22,048.62
  6. Step 6: Final answer
    x = 17,234.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.