Home / 43,355.45-65,033.21-12,190.70

Finding the Fourth Proportional to 43,355.45, 65,033.21 and 12,190.70

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Solution

The fourth proportional to 43,355.45, 65,033.21 and 12,190.70 is: 18,286.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,355.45 : 65,033.21 = 12,190.70 : x
  2. Step 2: Convert to fraction form
    43,355.45/65,033.21 = 12,190.70/x
  3. Step 3: Cross multiply
    43,355.45x = 65,033.21 × 12,190.70
  4. Step 4: Simplify right side
    43,355.45x = 792,800,454.78
  5. Step 5: Solve for x
    x = 792,800,454.78/43,355.45
  6. Step 6: Final answer
    x = 18,286.06

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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.