Home / 28,789.12-43,181.40-9,067.85

Finding the Fourth Proportional to 28,789.12, 43,181.40 and 9,067.85

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Solution

The fourth proportional to 28,789.12, 43,181.40 and 9,067.85 is: 13,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.12 : 43,181.40 = 9,067.85 : x
  2. Step 2: Convert to fraction form
    28,789.12/43,181.40 = 9,067.85/x
  3. Step 3: Cross multiply
    28,789.12x = 43,181.40 × 9,067.85
  4. Step 4: Simplify right side
    28,789.12x = 391,562,438.02
  5. Step 5: Solve for x
    x = 391,562,438.02/28,789.12
  6. Step 6: Final answer
    x = 13,601.06

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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.