Home / 27,747.14-38,291.18-15,171.88

Finding the Fourth Proportional to 27,747.14, 38,291.18 and 15,171.88

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Solution

The fourth proportional to 27,747.14, 38,291.18 and 15,171.88 is: 20,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,747.14 : 38,291.18 = 15,171.88 : x
  2. Step 2: Convert to fraction form
    27,747.14/38,291.18 = 15,171.88/x
  3. Step 3: Cross multiply
    27,747.14x = 38,291.18 × 15,171.88
  4. Step 4: Simplify right side
    27,747.14x = 580,949,188.02
  5. Step 5: Solve for x
    x = 580,949,188.02/27,747.14
  6. Step 6: Final answer
    x = 20,937.26

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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.