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Finding the Fourth Proportional to 22,349.81, 30,841.20 and 13,392.83

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Solution

The fourth proportional to 22,349.81, 30,841.20 and 13,392.83 is: 18,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,349.81 : 30,841.20 = 13,392.83 : x
  2. Step 2: Convert to fraction form
    22,349.81/30,841.20 = 13,392.83/x
  3. Step 3: Cross multiply
    22,349.81x = 30,841.20 × 13,392.83
  4. Step 4: Simplify right side
    22,349.81x = 413,050,794.39
  5. Step 5: Solve for x
    x = 413,050,794.39/22,349.81
  6. Step 6: Final answer
    x = 18,481.18

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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.