Home / 18,234.80-27,352.20-10,438.12

Finding the Fourth Proportional to 18,234.80, 27,352.20 and 10,438.12

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Solution

The fourth proportional to 18,234.80, 27,352.20 and 10,438.12 is: 15,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.80 : 27,352.20 = 10,438.12 : x
  2. Step 2: Convert to fraction form
    18,234.80/27,352.20 = 10,438.12/x
  3. Step 3: Cross multiply
    18,234.80x = 27,352.20 × 10,438.12
  4. Step 4: Simplify right side
    18,234.80x = 285,505,545.86
  5. Step 5: Solve for x
    x = 285,505,545.86/18,234.80
  6. Step 6: Final answer
    x = 15,657.18

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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.