Home / 20,057.46-27,679.56-11,105.82

Finding the Fourth Proportional to 20,057.46, 27,679.56 and 11,105.82

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Solution

The fourth proportional to 20,057.46, 27,679.56 and 11,105.82 is: 15,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.46 : 27,679.56 = 11,105.82 : x
  2. Step 2: Convert to fraction form
    20,057.46/27,679.56 = 11,105.82/x
  3. Step 3: Cross multiply
    20,057.46x = 27,679.56 × 11,105.82
  4. Step 4: Simplify right side
    20,057.46x = 307,404,211.04
  5. Step 5: Solve for x
    x = 307,404,211.04/20,057.46
  6. Step 6: Final answer
    x = 15,326.18

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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.