Home / 28,958.16-39,961.84-16,382.88

Finding the Fourth Proportional to 28,958.16, 39,961.84 and 16,382.88

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Solution

The fourth proportional to 28,958.16, 39,961.84 and 16,382.88 is: 22,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,958.16 : 39,961.84 = 16,382.88 : x
  2. Step 2: Convert to fraction form
    28,958.16/39,961.84 = 16,382.88/x
  3. Step 3: Cross multiply
    28,958.16x = 39,961.84 × 16,382.88
  4. Step 4: Simplify right side
    28,958.16x = 654,690,029.30
  5. Step 5: Solve for x
    x = 654,690,029.30/28,958.16
  6. Step 6: Final answer
    x = 22,608.14

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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.