Home / 27,657.92-38,167.68-15,082.72

Finding the Fourth Proportional to 27,657.92, 38,167.68 and 15,082.72

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Solution

The fourth proportional to 27,657.92, 38,167.68 and 15,082.72 is: 20,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,657.92 : 38,167.68 = 15,082.72 : x
  2. Step 2: Convert to fraction form
    27,657.92/38,167.68 = 15,082.72/x
  3. Step 3: Cross multiply
    27,657.92x = 38,167.68 × 15,082.72
  4. Step 4: Simplify right side
    27,657.92x = 575,672,430.49
  5. Step 5: Solve for x
    x = 575,672,430.49/27,657.92
  6. Step 6: Final answer
    x = 20,814.02

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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.