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Finding the Fourth Proportional to 43,352.43, 65,028.64 and 12,187.68

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Solution

The fourth proportional to 43,352.43, 65,028.64 and 12,187.68 is: 18,281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,352.43 : 65,028.64 = 12,187.68 : x
  2. Step 2: Convert to fraction form
    43,352.43/65,028.64 = 12,187.68/x
  3. Step 3: Cross multiply
    43,352.43x = 65,028.64 × 12,187.68
  4. Step 4: Simplify right side
    43,352.43x = 792,548,255.16
  5. Step 5: Solve for x
    x = 792,548,255.16/43,352.43
  6. Step 6: Final answer
    x = 18,281.52

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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.