Home / 27,747.05-38,291.54-15,171.80

Finding the Fourth Proportional to 27,747.05, 38,291.54 and 15,171.80

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Solution

The fourth proportional to 27,747.05, 38,291.54 and 15,171.80 is: 20,937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,747.05 : 38,291.54 = 15,171.80 : x
  2. Step 2: Convert to fraction form
    27,747.05/38,291.54 = 15,171.80/x
  3. Step 3: Cross multiply
    27,747.05x = 38,291.54 × 15,171.80
  4. Step 4: Simplify right side
    27,747.05x = 580,951,319.26
  5. Step 5: Solve for x
    x = 580,951,319.26/27,747.05
  6. Step 6: Final answer
    x = 20,937.41

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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.