Home / 20,095.32-27,731.42-11,144.14

Finding the Fourth Proportional to 20,095.32, 27,731.42 and 11,144.14

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Solution

The fourth proportional to 20,095.32, 27,731.42 and 11,144.14 is: 15,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.32 : 27,731.42 = 11,144.14 : x
  2. Step 2: Convert to fraction form
    20,095.32/27,731.42 = 11,144.14/x
  3. Step 3: Cross multiply
    20,095.32x = 27,731.42 × 11,144.14
  4. Step 4: Simplify right side
    20,095.32x = 309,042,910.30
  5. Step 5: Solve for x
    x = 309,042,910.30/20,095.32
  6. Step 6: Final answer
    x = 15,378.85

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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.