Home / 19,245.75-28,871.10-5,394.75

Finding the Fourth Proportional to 19,245.75, 28,871.10 and 5,394.75

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Solution

The fourth proportional to 19,245.75, 28,871.10 and 5,394.75 is: 8,092.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.75 : 28,871.10 = 5,394.75 : x
  2. Step 2: Convert to fraction form
    19,245.75/28,871.10 = 5,394.75/x
  3. Step 3: Cross multiply
    19,245.75x = 28,871.10 × 5,394.75
  4. Step 4: Simplify right side
    19,245.75x = 155,752,366.73
  5. Step 5: Solve for x
    x = 155,752,366.73/19,245.75
  6. Step 6: Final answer
    x = 8,092.82

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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.