Home / 28,481.36-39,305.28-15,906.88

Finding the Fourth Proportional to 28,481.36, 39,305.28 and 15,906.88

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Solution

The fourth proportional to 28,481.36, 39,305.28 and 15,906.88 is: 21,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.36 : 39,305.28 = 15,906.88 : x
  2. Step 2: Convert to fraction form
    28,481.36/39,305.28 = 15,906.88/x
  3. Step 3: Cross multiply
    28,481.36x = 39,305.28 × 15,906.88
  4. Step 4: Simplify right side
    28,481.36x = 625,224,372.33
  5. Step 5: Solve for x
    x = 625,224,372.33/28,481.36
  6. Step 6: Final answer
    x = 21,952.05

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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.