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Finding the Fourth Proportional to 19,665.80, 29,427.70 and 16,925.52

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Solution

The fourth proportional to 19,665.80, 29,427.70 and 16,925.52 is: 25,327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.80 : 29,427.70 = 16,925.52 : x
  2. Step 2: Convert to fraction form
    19,665.80/29,427.70 = 16,925.52/x
  3. Step 3: Cross multiply
    19,665.80x = 29,427.70 × 16,925.52
  4. Step 4: Simplify right side
    19,665.80x = 498,079,124.90
  5. Step 5: Solve for x
    x = 498,079,124.90/19,665.80
  6. Step 6: Final answer
    x = 25,327.17

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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.