Home / 20,108.38-27,745.11-11,608.66

Finding the Fourth Proportional to 20,108.38, 27,745.11 and 11,608.66

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Solution

The fourth proportional to 20,108.38, 27,745.11 and 11,608.66 is: 16,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.38 : 27,745.11 = 11,608.66 : x
  2. Step 2: Convert to fraction form
    20,108.38/27,745.11 = 11,608.66/x
  3. Step 3: Cross multiply
    20,108.38x = 27,745.11 × 11,608.66
  4. Step 4: Simplify right side
    20,108.38x = 322,083,548.65
  5. Step 5: Solve for x
    x = 322,083,548.65/20,108.38
  6. Step 6: Final answer
    x = 16,017.38

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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.