Home / 21,286.46-29,375.93-11,726.96

Finding the Fourth Proportional to 21,286.46, 29,375.93 and 11,726.96

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Solution

The fourth proportional to 21,286.46, 29,375.93 and 11,726.96 is: 16,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.46 : 29,375.93 = 11,726.96 : x
  2. Step 2: Convert to fraction form
    21,286.46/29,375.93 = 11,726.96/x
  3. Step 3: Cross multiply
    21,286.46x = 29,375.93 × 11,726.96
  4. Step 4: Simplify right side
    21,286.46x = 344,490,238.51
  5. Step 5: Solve for x
    x = 344,490,238.51/21,286.46
  6. Step 6: Final answer
    x = 16,183.54

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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.