Home / 20,191.26-27,863.48-11,238.21

Finding the Fourth Proportional to 20,191.26, 27,863.48 and 11,238.21

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Solution

The fourth proportional to 20,191.26, 27,863.48 and 11,238.21 is: 15,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.26 : 27,863.48 = 11,238.21 : x
  2. Step 2: Convert to fraction form
    20,191.26/27,863.48 = 11,238.21/x
  3. Step 3: Cross multiply
    20,191.26x = 27,863.48 × 11,238.21
  4. Step 4: Simplify right side
    20,191.26x = 313,135,583.38
  5. Step 5: Solve for x
    x = 313,135,583.38/20,191.26
  6. Step 6: Final answer
    x = 15,508.47

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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.