Home / 20,849.92-28,770.25-16,611.73

Finding the Fourth Proportional to 20,849.92, 28,770.25 and 16,611.73

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Solution

The fourth proportional to 20,849.92, 28,770.25 and 16,611.73 is: 22,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.92 : 28,770.25 = 16,611.73 : x
  2. Step 2: Convert to fraction form
    20,849.92/28,770.25 = 16,611.73/x
  3. Step 3: Cross multiply
    20,849.92x = 28,770.25 × 16,611.73
  4. Step 4: Simplify right side
    20,849.92x = 477,923,625.03
  5. Step 5: Solve for x
    x = 477,923,625.03/20,849.92
  6. Step 6: Final answer
    x = 22,922.08

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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.