Home / 43,685.24-65,512.82-12,512.12

Finding the Fourth Proportional to 43,685.24, 65,512.82 and 12,512.12

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Solution

The fourth proportional to 43,685.24, 65,512.82 and 12,512.12 is: 18,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,685.24 : 65,512.82 = 12,512.12 : x
  2. Step 2: Convert to fraction form
    43,685.24/65,512.82 = 12,512.12/x
  3. Step 3: Cross multiply
    43,685.24x = 65,512.82 × 12,512.12
  4. Step 4: Simplify right side
    43,685.24x = 819,704,265.38
  5. Step 5: Solve for x
    x = 819,704,265.38/43,685.24
  6. Step 6: Final answer
    x = 18,763.87

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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.