Home / 20,247.57-30,375.67-7,100.73

Finding the Fourth Proportional to 20,247.57, 30,375.67 and 7,100.73

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Solution

The fourth proportional to 20,247.57, 30,375.67 and 7,100.73 is: 10,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.57 : 30,375.67 = 7,100.73 : x
  2. Step 2: Convert to fraction form
    20,247.57/30,375.67 = 7,100.73/x
  3. Step 3: Cross multiply
    20,247.57x = 30,375.67 × 7,100.73
  4. Step 4: Simplify right side
    20,247.57x = 215,689,431.24
  5. Step 5: Solve for x
    x = 215,689,431.24/20,247.57
  6. Step 6: Final answer
    x = 10,652.61

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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.