Home / 43,755.75-65,604.47-20,369.43

Finding the Fourth Proportional to 43,755.75, 65,604.47 and 20,369.43

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Solution

The fourth proportional to 43,755.75, 65,604.47 and 20,369.43 is: 30,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,755.75 : 65,604.47 = 20,369.43 : x
  2. Step 2: Convert to fraction form
    43,755.75/65,604.47 = 20,369.43/x
  3. Step 3: Cross multiply
    43,755.75x = 65,604.47 × 20,369.43
  4. Step 4: Simplify right side
    43,755.75x = 1,336,325,557.50
  5. Step 5: Solve for x
    x = 1,336,325,557.50/43,755.75
  6. Step 6: Final answer
    x = 30,540.57

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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.