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Finding the Fourth Proportional to 43,893, 65,839.50 and 11,061

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Solution

The fourth proportional to 43,893, 65,839.50 and 11,061 is: 16,591.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,893 : 65,839.50 = 11,061 : x
  2. Step 2: Convert to fraction form
    43,893/65,839.50 = 11,061/x
  3. Step 3: Cross multiply
    43,893x = 65,839.50 × 11,061
  4. Step 4: Simplify right side
    43,893x = 728,250,709.50
  5. Step 5: Solve for x
    x = 728,250,709.50/43,893
  6. Step 6: Final answer
    x = 16,591.50

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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.