Home / 27,672.78-38,188.08-15,096.72

Finding the Fourth Proportional to 27,672.78, 38,188.08 and 15,096.72

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Solution

The fourth proportional to 27,672.78, 38,188.08 and 15,096.72 is: 20,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.78 : 38,188.08 = 15,096.72 : x
  2. Step 2: Convert to fraction form
    27,672.78/38,188.08 = 15,096.72/x
  3. Step 3: Cross multiply
    27,672.78x = 38,188.08 × 15,096.72
  4. Step 4: Simplify right side
    27,672.78x = 576,514,751.10
  5. Step 5: Solve for x
    x = 576,514,751.10/27,672.78
  6. Step 6: Final answer
    x = 20,833.28

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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.