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Finding the Fourth Proportional to 24,721.88, 34,116.23 and 13,391.40

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Solution

The fourth proportional to 24,721.88, 34,116.23 and 13,391.40 is: 18,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,721.88 : 34,116.23 = 13,391.40 : x
  2. Step 2: Convert to fraction form
    24,721.88/34,116.23 = 13,391.40/x
  3. Step 3: Cross multiply
    24,721.88x = 34,116.23 × 13,391.40
  4. Step 4: Simplify right side
    24,721.88x = 456,864,082.42
  5. Step 5: Solve for x
    x = 456,864,082.42/24,721.88
  6. Step 6: Final answer
    x = 18,480.15

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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.