Home / 27,859.38-38,445.62-15,112.32

Finding the Fourth Proportional to 27,859.38, 38,445.62 and 15,112.32

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Solution

The fourth proportional to 27,859.38, 38,445.62 and 15,112.32 is: 20,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.38 : 38,445.62 = 15,112.32 : x
  2. Step 2: Convert to fraction form
    27,859.38/38,445.62 = 15,112.32/x
  3. Step 3: Cross multiply
    27,859.38x = 38,445.62 × 15,112.32
  4. Step 4: Simplify right side
    27,859.38x = 581,002,512.04
  5. Step 5: Solve for x
    x = 581,002,512.04/27,859.38
  6. Step 6: Final answer
    x = 20,854.83

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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.