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Finding the Fourth Proportional to 17,479.63, 24,121.20 and 9,521.92

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Solution

The fourth proportional to 17,479.63, 24,121.20 and 9,521.92 is: 13,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,479.63 : 24,121.20 = 9,521.92 : x
  2. Step 2: Convert to fraction form
    17,479.63/24,121.20 = 9,521.92/x
  3. Step 3: Cross multiply
    17,479.63x = 24,121.20 × 9,521.92
  4. Step 4: Simplify right side
    17,479.63x = 229,680,136.70
  5. Step 5: Solve for x
    x = 229,680,136.70/17,479.63
  6. Step 6: Final answer
    x = 13,139.87

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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.