Home / 20,366.20-30,549.30-15,445.45

Finding the Fourth Proportional to 20,366.20, 30,549.30 and 15,445.45

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Solution

The fourth proportional to 20,366.20, 30,549.30 and 15,445.45 is: 23,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.20 : 30,549.30 = 15,445.45 : x
  2. Step 2: Convert to fraction form
    20,366.20/30,549.30 = 15,445.45/x
  3. Step 3: Cross multiply
    20,366.20x = 30,549.30 × 15,445.45
  4. Step 4: Simplify right side
    20,366.20x = 471,847,685.69
  5. Step 5: Solve for x
    x = 471,847,685.69/20,366.20
  6. Step 6: Final answer
    x = 23,168.18

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Similar ratio
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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.