Home / 43,805.26-65,716.13-20,431.70

Finding the Fourth Proportional to 43,805.26, 65,716.13 and 20,431.70

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Solution

The fourth proportional to 43,805.26, 65,716.13 and 20,431.70 is: 30,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,805.26 : 65,716.13 = 20,431.70 : x
  2. Step 2: Convert to fraction form
    43,805.26/65,716.13 = 20,431.70/x
  3. Step 3: Cross multiply
    43,805.26x = 65,716.13 × 20,431.70
  4. Step 4: Simplify right side
    43,805.26x = 1,342,692,253.32
  5. Step 5: Solve for x
    x = 1,342,692,253.32/43,805.26
  6. Step 6: Final answer
    x = 30,651.39

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1.5x scale

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.