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Finding the Fourth Proportional to 34,672.78, 51,977.58 and 12,480.94

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Solution

The fourth proportional to 34,672.78, 51,977.58 and 12,480.94 is: 18,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,672.78 : 51,977.58 = 12,480.94 : x
  2. Step 2: Convert to fraction form
    34,672.78/51,977.58 = 12,480.94/x
  3. Step 3: Cross multiply
    34,672.78x = 51,977.58 × 12,480.94
  4. Step 4: Simplify right side
    34,672.78x = 648,729,057.33
  5. Step 5: Solve for x
    x = 648,729,057.33/34,672.78
  6. Step 6: Final answer
    x = 18,710.04

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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.