Home / 20,747.46-31,121.22-7,601.16

Finding the Fourth Proportional to 20,747.46, 31,121.22 and 7,601.16

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Solution

The fourth proportional to 20,747.46, 31,121.22 and 7,601.16 is: 11,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.46 : 31,121.22 = 7,601.16 : x
  2. Step 2: Convert to fraction form
    20,747.46/31,121.22 = 7,601.16/x
  3. Step 3: Cross multiply
    20,747.46x = 31,121.22 × 7,601.16
  4. Step 4: Simplify right side
    20,747.46x = 236,557,372.62
  5. Step 5: Solve for x
    x = 236,557,372.62/20,747.46
  6. Step 6: Final answer
    x = 11,401.75

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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.