Home / 20,170.24-27,832.26-11,215.96

Finding the Fourth Proportional to 20,170.24, 27,832.26 and 11,215.96

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Solution

The fourth proportional to 20,170.24, 27,832.26 and 11,215.96 is: 15,476.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.24 : 27,832.26 = 11,215.96 : x
  2. Step 2: Convert to fraction form
    20,170.24/27,832.26 = 11,215.96/x
  3. Step 3: Cross multiply
    20,170.24x = 27,832.26 × 11,215.96
  4. Step 4: Simplify right side
    20,170.24x = 312,165,514.87
  5. Step 5: Solve for x
    x = 312,165,514.87/20,170.24
  6. Step 6: Final answer
    x = 15,476.54

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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.