Home / 21,404.62-29,537.12-11,843.96

Finding the Fourth Proportional to 21,404.62, 29,537.12 and 11,843.96

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Solution

The fourth proportional to 21,404.62, 29,537.12 and 11,843.96 is: 16,343.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.62 : 29,537.12 = 11,843.96 : x
  2. Step 2: Convert to fraction form
    21,404.62/29,537.12 = 11,843.96/x
  3. Step 3: Cross multiply
    21,404.62x = 29,537.12 × 11,843.96
  4. Step 4: Simplify right side
    21,404.62x = 349,836,467.80
  5. Step 5: Solve for x
    x = 349,836,467.80/21,404.62
  6. Step 6: Final answer
    x = 16,343.97

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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.