Home / 21,704.40-29,948.92-12,144.24

Finding the Fourth Proportional to 21,704.40, 29,948.92 and 12,144.24

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Solution

The fourth proportional to 21,704.40, 29,948.92 and 12,144.24 is: 16,757.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.40 : 29,948.92 = 12,144.24 : x
  2. Step 2: Convert to fraction form
    21,704.40/29,948.92 = 12,144.24/x
  3. Step 3: Cross multiply
    21,704.40x = 29,948.92 × 12,144.24
  4. Step 4: Simplify right side
    21,704.40x = 363,706,872.22
  5. Step 5: Solve for x
    x = 363,706,872.22/21,704.40
  6. Step 6: Final answer
    x = 16,757.29

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1.5x scale

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.