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Finding the Fourth Proportional to 17,885.82, 24,671.22 and 11,520.66

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Solution

The fourth proportional to 17,885.82, 24,671.22 and 11,520.66 is: 15,891.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,885.82 : 24,671.22 = 11,520.66 : x
  2. Step 2: Convert to fraction form
    17,885.82/24,671.22 = 11,520.66/x
  3. Step 3: Cross multiply
    17,885.82x = 24,671.22 × 11,520.66
  4. Step 4: Simplify right side
    17,885.82x = 284,228,737.41
  5. Step 5: Solve for x
    x = 284,228,737.41/17,885.82
  6. Step 6: Final answer
    x = 15,891.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.