Home / 20,729.24-31,049.88-16,763.48

Finding the Fourth Proportional to 20,729.24, 31,049.88 and 16,763.48

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Solution

The fourth proportional to 20,729.24, 31,049.88 and 16,763.48 is: 25,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.24 : 31,049.88 = 16,763.48 : x
  2. Step 2: Convert to fraction form
    20,729.24/31,049.88 = 16,763.48/x
  3. Step 3: Cross multiply
    20,729.24x = 31,049.88 × 16,763.48
  4. Step 4: Simplify right side
    20,729.24x = 520,504,042.38
  5. Step 5: Solve for x
    x = 520,504,042.38/20,729.24
  6. Step 6: Final answer
    x = 25,109.65

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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.