Home / 28,149.97-38,847.42-15,404.26

Finding the Fourth Proportional to 28,149.97, 38,847.42 and 15,404.26

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Solution

The fourth proportional to 28,149.97, 38,847.42 and 15,404.26 is: 21,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.97 : 38,847.42 = 15,404.26 : x
  2. Step 2: Convert to fraction form
    28,149.97/38,847.42 = 15,404.26/x
  3. Step 3: Cross multiply
    28,149.97x = 38,847.42 × 15,404.26
  4. Step 4: Simplify right side
    28,149.97x = 598,415,660.89
  5. Step 5: Solve for x
    x = 598,415,660.89/28,149.97
  6. Step 6: Final answer
    x = 21,258.13

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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.