Home / 21,286.03-29,375.63-11,854.59

Finding the Fourth Proportional to 21,286.03, 29,375.63 and 11,854.59

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Solution

The fourth proportional to 21,286.03, 29,375.63 and 11,854.59 is: 16,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.03 : 29,375.63 = 11,854.59 : x
  2. Step 2: Convert to fraction form
    21,286.03/29,375.63 = 11,854.59/x
  3. Step 3: Cross multiply
    21,286.03x = 29,375.63 × 11,854.59
  4. Step 4: Simplify right side
    21,286.03x = 348,236,211.66
  5. Step 5: Solve for x
    x = 348,236,211.66/21,286.03
  6. Step 6: Final answer
    x = 16,359.85

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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.