Home / 40,318.80-60,454.56-12,230.40

Finding the Fourth Proportional to 40,318.80, 60,454.56 and 12,230.40

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Solution

The fourth proportional to 40,318.80, 60,454.56 and 12,230.40 is: 18,338.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,318.80 : 60,454.56 = 12,230.40 : x
  2. Step 2: Convert to fraction form
    40,318.80/60,454.56 = 12,230.40/x
  3. Step 3: Cross multiply
    40,318.80x = 60,454.56 × 12,230.40
  4. Step 4: Simplify right side
    40,318.80x = 739,383,450.62
  5. Step 5: Solve for x
    x = 739,383,450.62/40,318.80
  6. Step 6: Final answer
    x = 18,338.43

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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.