Home / 18,759.20-28,115.21-16,517.52

Finding the Fourth Proportional to 18,759.20, 28,115.21 and 16,517.52

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Solution

The fourth proportional to 18,759.20, 28,115.21 and 16,517.52 is: 24,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.20 : 28,115.21 = 16,517.52 : x
  2. Step 2: Convert to fraction form
    18,759.20/28,115.21 = 16,517.52/x
  3. Step 3: Cross multiply
    18,759.20x = 28,115.21 × 16,517.52
  4. Step 4: Simplify right side
    18,759.20x = 464,393,584.77
  5. Step 5: Solve for x
    x = 464,393,584.77/18,759.20
  6. Step 6: Final answer
    x = 24,755.52

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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.