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Finding the Fourth Proportional to 25,471.78, 38,157.97 and 16,680.04

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Solution

The fourth proportional to 25,471.78, 38,157.97 and 16,680.04 is: 24,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,471.78 : 38,157.97 = 16,680.04 : x
  2. Step 2: Convert to fraction form
    25,471.78/38,157.97 = 16,680.04/x
  3. Step 3: Cross multiply
    25,471.78x = 38,157.97 × 16,680.04
  4. Step 4: Simplify right side
    25,471.78x = 636,476,465.92
  5. Step 5: Solve for x
    x = 636,476,465.92/25,471.78
  6. Step 6: Final answer
    x = 24,987.51

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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.