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Finding the Fourth Proportional to 27,855.20, 41,815.20 and 16,774.40

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Solution

The fourth proportional to 27,855.20, 41,815.20 and 16,774.40 is: 25,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.20 : 41,815.20 = 16,774.40 : x
  2. Step 2: Convert to fraction form
    27,855.20/41,815.20 = 16,774.40/x
  3. Step 3: Cross multiply
    27,855.20x = 41,815.20 × 16,774.40
  4. Step 4: Simplify right side
    27,855.20x = 701,424,890.88
  5. Step 5: Solve for x
    x = 701,424,890.88/27,855.20
  6. Step 6: Final answer
    x = 25,181.11

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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.