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Finding the Fourth Proportional to 41,579.70, 62,408.70 and 21,872.40

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Solution

The fourth proportional to 41,579.70, 62,408.70 and 21,872.40 is: 32,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,579.70 : 62,408.70 = 21,872.40 : x
  2. Step 2: Convert to fraction form
    41,579.70/62,408.70 = 21,872.40/x
  3. Step 3: Cross multiply
    41,579.70x = 62,408.70 × 21,872.40
  4. Step 4: Simplify right side
    41,579.70x = 1,365,028,049.88
  5. Step 5: Solve for x
    x = 1,365,028,049.88/41,579.70
  6. Step 6: Final answer
    x = 32,829.19

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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.