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Finding the Fourth Proportional to 16,755.40, 25,100.22 and 13,638.76

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Solution

The fourth proportional to 16,755.40, 25,100.22 and 13,638.76 is: 20,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,755.40 : 25,100.22 = 13,638.76 : x
  2. Step 2: Convert to fraction form
    16,755.40/25,100.22 = 13,638.76/x
  3. Step 3: Cross multiply
    16,755.40x = 25,100.22 × 13,638.76
  4. Step 4: Simplify right side
    16,755.40x = 342,335,876.53
  5. Step 5: Solve for x
    x = 342,335,876.53/16,755.40
  6. Step 6: Final answer
    x = 20,431.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.