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Finding the Fourth Proportional to 22,132.47, 30,542.43 and 12,060.99

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Solution

The fourth proportional to 22,132.47, 30,542.43 and 12,060.99 is: 16,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,132.47 : 30,542.43 = 12,060.99 : x
  2. Step 2: Convert to fraction form
    22,132.47/30,542.43 = 12,060.99/x
  3. Step 3: Cross multiply
    22,132.47x = 30,542.43 × 12,060.99
  4. Step 4: Simplify right side
    22,132.47x = 368,371,942.81
  5. Step 5: Solve for x
    x = 368,371,942.81/22,132.47
  6. Step 6: Final answer
    x = 16,643.96

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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.