Home / 20,105.24-30,149.06-8,250.88

Finding the Fourth Proportional to 20,105.24, 30,149.06 and 8,250.88

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Solution

The fourth proportional to 20,105.24, 30,149.06 and 8,250.88 is: 12,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.24 : 30,149.06 = 8,250.88 : x
  2. Step 2: Convert to fraction form
    20,105.24/30,149.06 = 8,250.88/x
  3. Step 3: Cross multiply
    20,105.24x = 30,149.06 × 8,250.88
  4. Step 4: Simplify right side
    20,105.24x = 248,756,276.17
  5. Step 5: Solve for x
    x = 248,756,276.17/20,105.24
  6. Step 6: Final answer
    x = 12,372.71

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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.