Home / 20,031.54-27,641.06-11,077.82

Finding the Fourth Proportional to 20,031.54, 27,641.06 and 11,077.82

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Solution

The fourth proportional to 20,031.54, 27,641.06 and 11,077.82 is: 15,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.54 : 27,641.06 = 11,077.82 : x
  2. Step 2: Convert to fraction form
    20,031.54/27,641.06 = 11,077.82/x
  3. Step 3: Cross multiply
    20,031.54x = 27,641.06 × 11,077.82
  4. Step 4: Simplify right side
    20,031.54x = 306,202,687.29
  5. Step 5: Solve for x
    x = 306,202,687.29/20,031.54
  6. Step 6: Final answer
    x = 15,286.03

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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.