Home / 43,403.46-65,119.31-19,708.20

Finding the Fourth Proportional to 43,403.46, 65,119.31 and 19,708.20

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Solution

The fourth proportional to 43,403.46, 65,119.31 and 19,708.20 is: 29,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,403.46 : 65,119.31 = 19,708.20 : x
  2. Step 2: Convert to fraction form
    43,403.46/65,119.31 = 19,708.20/x
  3. Step 3: Cross multiply
    43,403.46x = 65,119.31 × 19,708.20
  4. Step 4: Simplify right side
    43,403.46x = 1,283,384,286.80
  5. Step 5: Solve for x
    x = 1,283,384,286.80/43,403.46
  6. Step 6: Final answer
    x = 29,568.71

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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.