Home / 20,753.70-31,126.38-5,958.66

Finding the Fourth Proportional to 20,753.70, 31,126.38 and 5,958.66

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Solution

The fourth proportional to 20,753.70, 31,126.38 and 5,958.66 is: 8,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.70 : 31,126.38 = 5,958.66 : x
  2. Step 2: Convert to fraction form
    20,753.70/31,126.38 = 5,958.66/x
  3. Step 3: Cross multiply
    20,753.70x = 31,126.38 × 5,958.66
  4. Step 4: Simplify right side
    20,753.70x = 185,471,515.45
  5. Step 5: Solve for x
    x = 185,471,515.45/20,753.70
  6. Step 6: Final answer
    x = 8,936.79

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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.