Home / 21,326-29,434.20-12,375.44

Finding the Fourth Proportional to 21,326, 29,434.20 and 12,375.44

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Solution

The fourth proportional to 21,326, 29,434.20 and 12,375.44 is: 17,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326 : 29,434.20 = 12,375.44 : x
  2. Step 2: Convert to fraction form
    21,326/29,434.20 = 12,375.44/x
  3. Step 3: Cross multiply
    21,326x = 29,434.20 × 12,375.44
  4. Step 4: Simplify right side
    21,326x = 364,261,176.05
  5. Step 5: Solve for x
    x = 364,261,176.05/21,326
  6. Step 6: Final answer
    x = 17,080.61

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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.