Home / 20,091.33-27,726.15-11,138.27

Finding the Fourth Proportional to 20,091.33, 27,726.15 and 11,138.27

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Solution

The fourth proportional to 20,091.33, 27,726.15 and 11,138.27 is: 15,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.33 : 27,726.15 = 11,138.27 : x
  2. Step 2: Convert to fraction form
    20,091.33/27,726.15 = 11,138.27/x
  3. Step 3: Cross multiply
    20,091.33x = 27,726.15 × 11,138.27
  4. Step 4: Simplify right side
    20,091.33x = 308,821,206.13
  5. Step 5: Solve for x
    x = 308,821,206.13/20,091.33
  6. Step 6: Final answer
    x = 15,370.87

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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.