Home / 27,917.30-38,525.70-15,170.42

Finding the Fourth Proportional to 27,917.30, 38,525.70 and 15,170.42

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Solution

The fourth proportional to 27,917.30, 38,525.70 and 15,170.42 is: 20,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.30 : 38,525.70 = 15,170.42 : x
  2. Step 2: Convert to fraction form
    27,917.30/38,525.70 = 15,170.42/x
  3. Step 3: Cross multiply
    27,917.30x = 38,525.70 × 15,170.42
  4. Step 4: Simplify right side
    27,917.30x = 584,451,049.79
  5. Step 5: Solve for x
    x = 584,451,049.79/27,917.30
  6. Step 6: Final answer
    x = 20,935.09

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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.