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Finding the Fourth Proportional to 28,793.80, 43,190.70 and 16,109.20

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Solution

The fourth proportional to 28,793.80, 43,190.70 and 16,109.20 is: 24,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.80 : 43,190.70 = 16,109.20 : x
  2. Step 2: Convert to fraction form
    28,793.80/43,190.70 = 16,109.20/x
  3. Step 3: Cross multiply
    28,793.80x = 43,190.70 × 16,109.20
  4. Step 4: Simplify right side
    28,793.80x = 695,767,624.44
  5. Step 5: Solve for x
    x = 695,767,624.44/28,793.80
  6. Step 6: Final answer
    x = 24,163.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.