Home / 20,149.40-30,234.90-8,463.80

Finding the Fourth Proportional to 20,149.40, 30,234.90 and 8,463.80

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Solution

The fourth proportional to 20,149.40, 30,234.90 and 8,463.80 is: 12,700.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.40 : 30,234.90 = 8,463.80 : x
  2. Step 2: Convert to fraction form
    20,149.40/30,234.90 = 8,463.80/x
  3. Step 3: Cross multiply
    20,149.40x = 30,234.90 × 8,463.80
  4. Step 4: Simplify right side
    20,149.40x = 255,902,146.62
  5. Step 5: Solve for x
    x = 255,902,146.62/20,149.40
  6. Step 6: Final answer
    x = 12,700.24

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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.