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Finding the Fourth Proportional to 34,250.80, 51,385.80 and 16,721.20

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Solution

The fourth proportional to 34,250.80, 51,385.80 and 16,721.20 is: 25,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,250.80 : 51,385.80 = 16,721.20 : x
  2. Step 2: Convert to fraction form
    34,250.80/51,385.80 = 16,721.20/x
  3. Step 3: Cross multiply
    34,250.80x = 51,385.80 × 16,721.20
  4. Step 4: Simplify right side
    34,250.80x = 859,232,238.96
  5. Step 5: Solve for x
    x = 859,232,238.96/34,250.80
  6. Step 6: Final answer
    x = 25,086.49

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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.