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Finding the Fourth Proportional to 43,855.81, 65,773.65 and 12,268.11

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Solution

The fourth proportional to 43,855.81, 65,773.65 and 12,268.11 is: 18,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.81 : 65,773.65 = 12,268.11 : x
  2. Step 2: Convert to fraction form
    43,855.81/65,773.65 = 12,268.11/x
  3. Step 3: Cross multiply
    43,855.81x = 65,773.65 × 12,268.11
  4. Step 4: Simplify right side
    43,855.81x = 806,918,295.98
  5. Step 5: Solve for x
    x = 806,918,295.98/43,855.81
  6. Step 6: Final answer
    x = 18,399.35

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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.