Home / 27,680.44-38,198.46-15,105.40

Finding the Fourth Proportional to 27,680.44, 38,198.46 and 15,105.40

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Solution

The fourth proportional to 27,680.44, 38,198.46 and 15,105.40 is: 20,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.44 : 38,198.46 = 15,105.40 : x
  2. Step 2: Convert to fraction form
    27,680.44/38,198.46 = 15,105.40/x
  3. Step 3: Cross multiply
    27,680.44x = 38,198.46 × 15,105.40
  4. Step 4: Simplify right side
    27,680.44x = 577,003,017.68
  5. Step 5: Solve for x
    x = 577,003,017.68/27,680.44
  6. Step 6: Final answer
    x = 20,845.15

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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.