Home / 20,933.26-31,399.45-6,141.85

Finding the Fourth Proportional to 20,933.26, 31,399.45 and 6,141.85

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Solution

The fourth proportional to 20,933.26, 31,399.45 and 6,141.85 is: 9,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.26 : 31,399.45 = 6,141.85 : x
  2. Step 2: Convert to fraction form
    20,933.26/31,399.45 = 6,141.85/x
  3. Step 3: Cross multiply
    20,933.26x = 31,399.45 × 6,141.85
  4. Step 4: Simplify right side
    20,933.26x = 192,850,711.98
  5. Step 5: Solve for x
    x = 192,850,711.98/20,933.26
  6. Step 6: Final answer
    x = 9,212.65

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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.