Home / 28,789.11-43,185.21-9,069.21

Finding the Fourth Proportional to 28,789.11, 43,185.21 and 9,069.21

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Solution

The fourth proportional to 28,789.11, 43,185.21 and 9,069.21 is: 13,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.11 : 43,185.21 = 9,069.21 : x
  2. Step 2: Convert to fraction form
    28,789.11/43,185.21 = 9,069.21/x
  3. Step 3: Cross multiply
    28,789.11x = 43,185.21 × 9,069.21
  4. Step 4: Simplify right side
    28,789.11x = 391,655,738.38
  5. Step 5: Solve for x
    x = 391,655,738.38/28,789.11
  6. Step 6: Final answer
    x = 13,604.30

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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.