Home / 20,092.26-30,138.30-8,399.10

Finding the Fourth Proportional to 20,092.26, 30,138.30 and 8,399.10

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Solution

The fourth proportional to 20,092.26, 30,138.30 and 8,399.10 is: 12,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.26 : 30,138.30 = 8,399.10 : x
  2. Step 2: Convert to fraction form
    20,092.26/30,138.30 = 8,399.10/x
  3. Step 3: Cross multiply
    20,092.26x = 30,138.30 × 8,399.10
  4. Step 4: Simplify right side
    20,092.26x = 253,134,595.53
  5. Step 5: Solve for x
    x = 253,134,595.53/20,092.26
  6. Step 6: Final answer
    x = 12,598.61

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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.