Home / 28,843.68-39,781.89-18,229.44

Finding the Fourth Proportional to 28,843.68, 39,781.89 and 18,229.44

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Solution

The fourth proportional to 28,843.68, 39,781.89 and 18,229.44 is: 25,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,843.68 : 39,781.89 = 18,229.44 : x
  2. Step 2: Convert to fraction form
    28,843.68/39,781.89 = 18,229.44/x
  3. Step 3: Cross multiply
    28,843.68x = 39,781.89 × 18,229.44
  4. Step 4: Simplify right side
    28,843.68x = 725,201,576.84
  5. Step 5: Solve for x
    x = 725,201,576.84/28,843.68
  6. Step 6: Final answer
    x = 25,142.48

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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.