Home / 20,750.85-31,131.54-5,960.79

Finding the Fourth Proportional to 20,750.85, 31,131.54 and 5,960.79

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Solution

The fourth proportional to 20,750.85, 31,131.54 and 5,960.79 is: 8,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.85 : 31,131.54 = 5,960.79 : x
  2. Step 2: Convert to fraction form
    20,750.85/31,131.54 = 5,960.79/x
  3. Step 3: Cross multiply
    20,750.85x = 31,131.54 × 5,960.79
  4. Step 4: Simplify right side
    20,750.85x = 185,568,572.32
  5. Step 5: Solve for x
    x = 185,568,572.32/20,750.85
  6. Step 6: Final answer
    x = 8,942.70

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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.