Home / 22,928.20-34,402.18-12,405.62

Finding the Fourth Proportional to 22,928.20, 34,402.18 and 12,405.62

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Solution

The fourth proportional to 22,928.20, 34,402.18 and 12,405.62 is: 18,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,928.20 : 34,402.18 = 12,405.62 : x
  2. Step 2: Convert to fraction form
    22,928.20/34,402.18 = 12,405.62/x
  3. Step 3: Cross multiply
    22,928.20x = 34,402.18 × 12,405.62
  4. Step 4: Simplify right side
    22,928.20x = 426,780,372.25
  5. Step 5: Solve for x
    x = 426,780,372.25/22,928.20
  6. Step 6: Final answer
    x = 18,613.78

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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.