Home / 28,481.68-39,305-16,540.64

Finding the Fourth Proportional to 28,481.68, 39,305 and 16,540.64

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Solution

The fourth proportional to 28,481.68, 39,305 and 16,540.64 is: 22,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.68 : 39,305 = 16,540.64 : x
  2. Step 2: Convert to fraction form
    28,481.68/39,305 = 16,540.64/x
  3. Step 3: Cross multiply
    28,481.68x = 39,305 × 16,540.64
  4. Step 4: Simplify right side
    28,481.68x = 650,129,855.20
  5. Step 5: Solve for x
    x = 650,129,855.20/28,481.68
  6. Step 6: Final answer
    x = 22,826.25

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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.