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Finding the Fourth Proportional to 41,323, 61,994.22 and 13,621

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Solution

The fourth proportional to 41,323, 61,994.22 and 13,621 is: 20,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,323 : 61,994.22 = 13,621 : x
  2. Step 2: Convert to fraction form
    41,323/61,994.22 = 13,621/x
  3. Step 3: Cross multiply
    41,323x = 61,994.22 × 13,621
  4. Step 4: Simplify right side
    41,323x = 844,423,270.62
  5. Step 5: Solve for x
    x = 844,423,270.62/41,323
  6. Step 6: Final answer
    x = 20,434.70

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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.