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Finding the Fourth Proportional to 22,170.78, 33,212.43 and 16,630.38

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Solution

The fourth proportional to 22,170.78, 33,212.43 and 16,630.38 is: 24,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,170.78 : 33,212.43 = 16,630.38 : x
  2. Step 2: Convert to fraction form
    22,170.78/33,212.43 = 16,630.38/x
  3. Step 3: Cross multiply
    22,170.78x = 33,212.43 × 16,630.38
  4. Step 4: Simplify right side
    22,170.78x = 552,335,331.62
  5. Step 5: Solve for x
    x = 552,335,331.62/22,170.78
  6. Step 6: Final answer
    x = 24,912.76

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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.