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Finding the Fourth Proportional to 19,377.42, 29,066.16 and 13,545.42

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Solution

The fourth proportional to 19,377.42, 29,066.16 and 13,545.42 is: 20,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,377.42 : 29,066.16 = 13,545.42 : x
  2. Step 2: Convert to fraction form
    19,377.42/29,066.16 = 13,545.42/x
  3. Step 3: Cross multiply
    19,377.42x = 29,066.16 × 13,545.42
  4. Step 4: Simplify right side
    19,377.42x = 393,713,344.99
  5. Step 5: Solve for x
    x = 393,713,344.99/19,377.42
  6. Step 6: Final answer
    x = 20,318.15

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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.