Home / 18,723.20-28,002.18-16,657.70

Finding the Fourth Proportional to 18,723.20, 28,002.18 and 16,657.70

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Solution

The fourth proportional to 18,723.20, 28,002.18 and 16,657.70 is: 24,913.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.20 : 28,002.18 = 16,657.70 : x
  2. Step 2: Convert to fraction form
    18,723.20/28,002.18 = 16,657.70/x
  3. Step 3: Cross multiply
    18,723.20x = 28,002.18 × 16,657.70
  4. Step 4: Simplify right side
    18,723.20x = 466,451,913.79
  5. Step 5: Solve for x
    x = 466,451,913.79/18,723.20
  6. Step 6: Final answer
    x = 24,913.04

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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.