Home / 20,067.31-27,693.22-10,992.54

Finding the Fourth Proportional to 20,067.31, 27,693.22 and 10,992.54

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Solution

The fourth proportional to 20,067.31, 27,693.22 and 10,992.54 is: 15,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.31 : 27,693.22 = 10,992.54 : x
  2. Step 2: Convert to fraction form
    20,067.31/27,693.22 = 10,992.54/x
  3. Step 3: Cross multiply
    20,067.31x = 27,693.22 × 10,992.54
  4. Step 4: Simplify right side
    20,067.31x = 304,418,660.98
  5. Step 5: Solve for x
    x = 304,418,660.98/20,067.31
  6. Step 6: Final answer
    x = 15,169.88

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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.