Home / 28,868.20-43,306.65-12,228.30

Finding the Fourth Proportional to 28,868.20, 43,306.65 and 12,228.30

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Solution

The fourth proportional to 28,868.20, 43,306.65 and 12,228.30 is: 18,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.20 : 43,306.65 = 12,228.30 : x
  2. Step 2: Convert to fraction form
    28,868.20/43,306.65 = 12,228.30/x
  3. Step 3: Cross multiply
    28,868.20x = 43,306.65 × 12,228.30
  4. Step 4: Simplify right side
    28,868.20x = 529,566,708.20
  5. Step 5: Solve for x
    x = 529,566,708.20/28,868.20
  6. Step 6: Final answer
    x = 18,344.29

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