Home / 21,372.72-29,494.44-12,425.46

Finding the Fourth Proportional to 21,372.72, 29,494.44 and 12,425.46

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Solution

The fourth proportional to 21,372.72, 29,494.44 and 12,425.46 is: 17,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.72 : 29,494.44 = 12,425.46 : x
  2. Step 2: Convert to fraction form
    21,372.72/29,494.44 = 12,425.46/x
  3. Step 3: Cross multiply
    21,372.72x = 29,494.44 × 12,425.46
  4. Step 4: Simplify right side
    21,372.72x = 366,481,984.44
  5. Step 5: Solve for x
    x = 366,481,984.44/21,372.72
  6. Step 6: Final answer
    x = 17,147.19

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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.