Home / 20,191.50-27,863.83-11,238.46

Finding the Fourth Proportional to 20,191.50, 27,863.83 and 11,238.46

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Solution

The fourth proportional to 20,191.50, 27,863.83 and 11,238.46 is: 15,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.50 : 27,863.83 = 11,238.46 : x
  2. Step 2: Convert to fraction form
    20,191.50/27,863.83 = 11,238.46/x
  3. Step 3: Cross multiply
    20,191.50x = 27,863.83 × 11,238.46
  4. Step 4: Simplify right side
    20,191.50x = 313,146,538.90
  5. Step 5: Solve for x
    x = 313,146,538.90/20,191.50
  6. Step 6: Final answer
    x = 15,508.83

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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.