Home / 20,125.44-27,770.96-11,170.56

Finding the Fourth Proportional to 20,125.44, 27,770.96 and 11,170.56

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Solution

The fourth proportional to 20,125.44, 27,770.96 and 11,170.56 is: 15,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.44 : 27,770.96 = 11,170.56 : x
  2. Step 2: Convert to fraction form
    20,125.44/27,770.96 = 11,170.56/x
  3. Step 3: Cross multiply
    20,125.44x = 27,770.96 × 11,170.56
  4. Step 4: Simplify right side
    20,125.44x = 310,217,174.94
  5. Step 5: Solve for x
    x = 310,217,174.94/20,125.44
  6. Step 6: Final answer
    x = 15,414.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.