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Finding the Fourth Proportional to 19,522.95, 29,267.15 and 9,131.91

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Solution

The fourth proportional to 19,522.95, 29,267.15 and 9,131.91 is: 13,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,522.95 : 29,267.15 = 9,131.91 : x
  2. Step 2: Convert to fraction form
    19,522.95/29,267.15 = 9,131.91/x
  3. Step 3: Cross multiply
    19,522.95x = 29,267.15 × 9,131.91
  4. Step 4: Simplify right side
    19,522.95x = 267,264,934.10
  5. Step 5: Solve for x
    x = 267,264,934.10/19,522.95
  6. Step 6: Final answer
    x = 13,689.78

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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.