Home / 28,201.71-38,919.92-16,268.79

Finding the Fourth Proportional to 28,201.71, 38,919.92 and 16,268.79

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Solution

The fourth proportional to 28,201.71, 38,919.92 and 16,268.79 is: 22,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.71 : 38,919.92 = 16,268.79 : x
  2. Step 2: Convert to fraction form
    28,201.71/38,919.92 = 16,268.79/x
  3. Step 3: Cross multiply
    28,201.71x = 38,919.92 × 16,268.79
  4. Step 4: Simplify right side
    28,201.71x = 633,179,923.95
  5. Step 5: Solve for x
    x = 633,179,923.95/28,201.71
  6. Step 6: Final answer
    x = 22,451.83

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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.