Home / 20,234.13-30,351.50-7,754.79

Finding the Fourth Proportional to 20,234.13, 30,351.50 and 7,754.79

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Solution

The fourth proportional to 20,234.13, 30,351.50 and 7,754.79 is: 11,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.13 : 30,351.50 = 7,754.79 : x
  2. Step 2: Convert to fraction form
    20,234.13/30,351.50 = 7,754.79/x
  3. Step 3: Cross multiply
    20,234.13x = 30,351.50 × 7,754.79
  4. Step 4: Simplify right side
    20,234.13x = 235,369,469.91
  5. Step 5: Solve for x
    x = 235,369,469.91/20,234.13
  6. Step 6: Final answer
    x = 11,632.30

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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.