Home / 43,711.38-65,567.12-18,735.22

Finding the Fourth Proportional to 43,711.38, 65,567.12 and 18,735.22

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Solution

The fourth proportional to 43,711.38, 65,567.12 and 18,735.22 is: 28,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,711.38 : 65,567.12 = 18,735.22 : x
  2. Step 2: Convert to fraction form
    43,711.38/65,567.12 = 18,735.22/x
  3. Step 3: Cross multiply
    43,711.38x = 65,567.12 × 18,735.22
  4. Step 4: Simplify right side
    43,711.38x = 1,228,414,417.97
  5. Step 5: Solve for x
    x = 1,228,414,417.97/43,711.38
  6. Step 6: Final answer
    x = 28,102.85

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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.