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Finding the Fourth Proportional to 34,468.12, 51,662.49 and 19,687.65

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Solution

The fourth proportional to 34,468.12, 51,662.49 and 19,687.65 is: 29,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,468.12 : 51,662.49 = 19,687.65 : x
  2. Step 2: Convert to fraction form
    34,468.12/51,662.49 = 19,687.65/x
  3. Step 3: Cross multiply
    34,468.12x = 51,662.49 × 19,687.65
  4. Step 4: Simplify right side
    34,468.12x = 1,017,113,021.25
  5. Step 5: Solve for x
    x = 1,017,113,021.25/34,468.12
  6. Step 6: Final answer
    x = 29,508.80

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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.