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Finding the Fourth Proportional to 34,673.65, 51,978.79 and 12,481.95

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Solution

The fourth proportional to 34,673.65, 51,978.79 and 12,481.95 is: 18,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,673.65 : 51,978.79 = 12,481.95 : x
  2. Step 2: Convert to fraction form
    34,673.65/51,978.79 = 12,481.95/x
  3. Step 3: Cross multiply
    34,673.65x = 51,978.79 × 12,481.95
  4. Step 4: Simplify right side
    34,673.65x = 648,796,657.84
  5. Step 5: Solve for x
    x = 648,796,657.84/34,673.65
  6. Step 6: Final answer
    x = 18,711.52

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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.