Home / 28,825.97-39,778.17-16,080.35

Finding the Fourth Proportional to 28,825.97, 39,778.17 and 16,080.35

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Solution

The fourth proportional to 28,825.97, 39,778.17 and 16,080.35 is: 22,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.97 : 39,778.17 = 16,080.35 : x
  2. Step 2: Convert to fraction form
    28,825.97/39,778.17 = 16,080.35/x
  3. Step 3: Cross multiply
    28,825.97x = 39,778.17 × 16,080.35
  4. Step 4: Simplify right side
    28,825.97x = 639,646,895.96
  5. Step 5: Solve for x
    x = 639,646,895.96/28,825.97
  6. Step 6: Final answer
    x = 22,189.95

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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.