Home / 20,327.10-30,500.24-7,185.66

Finding the Fourth Proportional to 20,327.10, 30,500.24 and 7,185.66

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Solution

The fourth proportional to 20,327.10, 30,500.24 and 7,185.66 is: 10,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.10 : 30,500.24 = 7,185.66 : x
  2. Step 2: Convert to fraction form
    20,327.10/30,500.24 = 7,185.66/x
  3. Step 3: Cross multiply
    20,327.10x = 30,500.24 × 7,185.66
  4. Step 4: Simplify right side
    20,327.10x = 219,164,318.63
  5. Step 5: Solve for x
    x = 219,164,318.63/20,327.10
  6. Step 6: Final answer
    x = 10,781.88

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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.