Home / 27,654.20-38,162.70-15,078.94

Finding the Fourth Proportional to 27,654.20, 38,162.70 and 15,078.94

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Solution

The fourth proportional to 27,654.20, 38,162.70 and 15,078.94 is: 20,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.20 : 38,162.70 = 15,078.94 : x
  2. Step 2: Convert to fraction form
    27,654.20/38,162.70 = 15,078.94/x
  3. Step 3: Cross multiply
    27,654.20x = 38,162.70 × 15,078.94
  4. Step 4: Simplify right side
    27,654.20x = 575,453,063.54
  5. Step 5: Solve for x
    x = 575,453,063.54/27,654.20
  6. Step 6: Final answer
    x = 20,808.88

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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.