Home / 20,191.23-27,863.55-11,238.48

Finding the Fourth Proportional to 20,191.23, 27,863.55 and 11,238.48

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Solution

The fourth proportional to 20,191.23, 27,863.55 and 11,238.48 is: 15,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.23 : 27,863.55 = 11,238.48 : x
  2. Step 2: Convert to fraction form
    20,191.23/27,863.55 = 11,238.48/x
  3. Step 3: Cross multiply
    20,191.23x = 27,863.55 × 11,238.48
  4. Step 4: Simplify right side
    20,191.23x = 313,143,949.40
  5. Step 5: Solve for x
    x = 313,143,949.40/20,191.23
  6. Step 6: Final answer
    x = 15,508.91

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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.