Home / 27,654.28-38,162.90-15,079

Finding the Fourth Proportional to 27,654.28, 38,162.90 and 15,079

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Solution

The fourth proportional to 27,654.28, 38,162.90 and 15,079 is: 20,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.28 : 38,162.90 = 15,079 : x
  2. Step 2: Convert to fraction form
    27,654.28/38,162.90 = 15,079/x
  3. Step 3: Cross multiply
    27,654.28x = 38,162.90 × 15,079
  4. Step 4: Simplify right side
    27,654.28x = 575,458,369.10
  5. Step 5: Solve for x
    x = 575,458,369.10/27,654.28
  6. Step 6: Final answer
    x = 20,809.02

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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.