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Finding the Fourth Proportional to 28,854.25, 43,248.56 and 12,203.89

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Solution

The fourth proportional to 28,854.25, 43,248.56 and 12,203.89 is: 18,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.25 : 43,248.56 = 12,203.89 : x
  2. Step 2: Convert to fraction form
    28,854.25/43,248.56 = 12,203.89/x
  3. Step 3: Cross multiply
    28,854.25x = 43,248.56 × 12,203.89
  4. Step 4: Simplify right side
    28,854.25x = 527,800,668.90
  5. Step 5: Solve for x
    x = 527,800,668.90/28,854.25
  6. Step 6: Final answer
    x = 18,291.96

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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.