Home / 28,209.11-38,919.42-16,724.93

Finding the Fourth Proportional to 28,209.11, 38,919.42 and 16,724.93

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Solution

The fourth proportional to 28,209.11, 38,919.42 and 16,724.93 is: 23,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.11 : 38,919.42 = 16,724.93 : x
  2. Step 2: Convert to fraction form
    28,209.11/38,919.42 = 16,724.93/x
  3. Step 3: Cross multiply
    28,209.11x = 38,919.42 × 16,724.93
  4. Step 4: Simplify right side
    28,209.11x = 650,924,380.54
  5. Step 5: Solve for x
    x = 650,924,380.54/28,209.11
  6. Step 6: Final answer
    x = 23,074.97

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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.