Home / 20,752.85-31,129.49-5,961.74

Finding the Fourth Proportional to 20,752.85, 31,129.49 and 5,961.74

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Solution

The fourth proportional to 20,752.85, 31,129.49 and 5,961.74 is: 8,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.85 : 31,129.49 = 5,961.74 : x
  2. Step 2: Convert to fraction form
    20,752.85/31,129.49 = 5,961.74/x
  3. Step 3: Cross multiply
    20,752.85x = 31,129.49 × 5,961.74
  4. Step 4: Simplify right side
    20,752.85x = 185,585,784.97
  5. Step 5: Solve for x
    x = 185,585,784.97/20,752.85
  6. Step 6: Final answer
    x = 8,942.66

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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.