Home / 20,079.38-27,710.15-11,126.04

Finding the Fourth Proportional to 20,079.38, 27,710.15 and 11,126.04

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Solution

The fourth proportional to 20,079.38, 27,710.15 and 11,126.04 is: 15,354.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.38 : 27,710.15 = 11,126.04 : x
  2. Step 2: Convert to fraction form
    20,079.38/27,710.15 = 11,126.04/x
  3. Step 3: Cross multiply
    20,079.38x = 27,710.15 × 11,126.04
  4. Step 4: Simplify right side
    20,079.38x = 308,304,181.68
  5. Step 5: Solve for x
    x = 308,304,181.68/20,079.38
  6. Step 6: Final answer
    x = 15,354.27

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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.