Home / 20,757.09-31,135.46-5,965.95

Finding the Fourth Proportional to 20,757.09, 31,135.46 and 5,965.95

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Solution

The fourth proportional to 20,757.09, 31,135.46 and 5,965.95 is: 8,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.09 : 31,135.46 = 5,965.95 : x
  2. Step 2: Convert to fraction form
    20,757.09/31,135.46 = 5,965.95/x
  3. Step 3: Cross multiply
    20,757.09x = 31,135.46 × 5,965.95
  4. Step 4: Simplify right side
    20,757.09x = 185,752,567.76
  5. Step 5: Solve for x
    x = 185,752,567.76/20,757.09
  6. Step 6: Final answer
    x = 8,948.87

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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.