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Finding the Fourth Proportional to 29,850, 41,190.30 and 16,421.82

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Solution

The fourth proportional to 29,850, 41,190.30 and 16,421.82 is: 22,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,850 : 41,190.30 = 16,421.82 : x
  2. Step 2: Convert to fraction form
    29,850/41,190.30 = 16,421.82/x
  3. Step 3: Cross multiply
    29,850x = 41,190.30 × 16,421.82
  4. Step 4: Simplify right side
    29,850x = 676,419,692.35
  5. Step 5: Solve for x
    x = 676,419,692.35/29,850
  6. Step 6: Final answer
    x = 22,660.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.