Home / 28,829.85-43,249.23-12,189.96

Finding the Fourth Proportional to 28,829.85, 43,249.23 and 12,189.96

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Solution

The fourth proportional to 28,829.85, 43,249.23 and 12,189.96 is: 18,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.85 : 43,249.23 = 12,189.96 : x
  2. Step 2: Convert to fraction form
    28,829.85/43,249.23 = 12,189.96/x
  3. Step 3: Cross multiply
    28,829.85x = 43,249.23 × 12,189.96
  4. Step 4: Simplify right side
    28,829.85x = 527,206,383.73
  5. Step 5: Solve for x
    x = 527,206,383.73/28,829.85
  6. Step 6: Final answer
    x = 18,286.82

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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.