Home / 20,234.18-27,912.76-13,517.66

Finding the Fourth Proportional to 20,234.18, 27,912.76 and 13,517.66

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Solution

The fourth proportional to 20,234.18, 27,912.76 and 13,517.66 is: 18,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.18 : 27,912.76 = 13,517.66 : x
  2. Step 2: Convert to fraction form
    20,234.18/27,912.76 = 13,517.66/x
  3. Step 3: Cross multiply
    20,234.18x = 27,912.76 × 13,517.66
  4. Step 4: Simplify right side
    20,234.18x = 377,315,199.34
  5. Step 5: Solve for x
    x = 377,315,199.34/20,234.18
  6. Step 6: Final answer
    x = 18,647.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.