Home / 27,991.28-38,625.11-17,234.45

Finding the Fourth Proportional to 27,991.28, 38,625.11 and 17,234.45

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Solution

The fourth proportional to 27,991.28, 38,625.11 and 17,234.45 is: 23,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.28 : 38,625.11 = 17,234.45 : x
  2. Step 2: Convert to fraction form
    27,991.28/38,625.11 = 17,234.45/x
  3. Step 3: Cross multiply
    27,991.28x = 38,625.11 × 17,234.45
  4. Step 4: Simplify right side
    27,991.28x = 665,682,247.74
  5. Step 5: Solve for x
    x = 665,682,247.74/27,991.28
  6. Step 6: Final answer
    x = 23,781.77

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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.