Home / 27,811.20-38,377.92-15,233.44

Finding the Fourth Proportional to 27,811.20, 38,377.92 and 15,233.44

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Solution

The fourth proportional to 27,811.20, 38,377.92 and 15,233.44 is: 21,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.20 : 38,377.92 = 15,233.44 : x
  2. Step 2: Convert to fraction form
    27,811.20/38,377.92 = 15,233.44/x
  3. Step 3: Cross multiply
    27,811.20x = 38,377.92 × 15,233.44
  4. Step 4: Simplify right side
    27,811.20x = 584,627,741.64
  5. Step 5: Solve for x
    x = 584,627,741.64/27,811.20
  6. Step 6: Final answer
    x = 21,021.31

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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.