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Finding the Fourth Proportional to 17,193.20, 25,789.80 and 10,281.20

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Solution

The fourth proportional to 17,193.20, 25,789.80 and 10,281.20 is: 15,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,193.20 : 25,789.80 = 10,281.20 : x
  2. Step 2: Convert to fraction form
    17,193.20/25,789.80 = 10,281.20/x
  3. Step 3: Cross multiply
    17,193.20x = 25,789.80 × 10,281.20
  4. Step 4: Simplify right side
    17,193.20x = 265,150,091.76
  5. Step 5: Solve for x
    x = 265,150,091.76/17,193.20
  6. Step 6: Final answer
    x = 15,421.80

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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.