Home / 20,229.15-30,324.13-7,739.56

Finding the Fourth Proportional to 20,229.15, 30,324.13 and 7,739.56

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Solution

The fourth proportional to 20,229.15, 30,324.13 and 7,739.56 is: 11,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.15 : 30,324.13 = 7,739.56 : x
  2. Step 2: Convert to fraction form
    20,229.15/30,324.13 = 7,739.56/x
  3. Step 3: Cross multiply
    20,229.15x = 30,324.13 × 7,739.56
  4. Step 4: Simplify right side
    20,229.15x = 234,695,423.58
  5. Step 5: Solve for x
    x = 234,695,423.58/20,229.15
  6. Step 6: Final answer
    x = 11,601.84

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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.