Home / 20,216.75-30,330.17-7,737.75

Finding the Fourth Proportional to 20,216.75, 30,330.17 and 7,737.75

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Solution

The fourth proportional to 20,216.75, 30,330.17 and 7,737.75 is: 11,608.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.75 : 30,330.17 = 7,737.75 : x
  2. Step 2: Convert to fraction form
    20,216.75/30,330.17 = 7,737.75/x
  3. Step 3: Cross multiply
    20,216.75x = 30,330.17 × 7,737.75
  4. Step 4: Simplify right side
    20,216.75x = 234,687,234.23
  5. Step 5: Solve for x
    x = 234,687,234.23/20,216.75
  6. Step 6: Final answer
    x = 11,608.56

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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.