Home / 40,378.32-60,560.32-12,291.60

Finding the Fourth Proportional to 40,378.32, 60,560.32 and 12,291.60

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Solution

The fourth proportional to 40,378.32, 60,560.32 and 12,291.60 is: 18,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.32 : 60,560.32 = 12,291.60 : x
  2. Step 2: Convert to fraction form
    40,378.32/60,560.32 = 12,291.60/x
  3. Step 3: Cross multiply
    40,378.32x = 60,560.32 × 12,291.60
  4. Step 4: Simplify right side
    40,378.32x = 744,383,229.31
  5. Step 5: Solve for x
    x = 744,383,229.31/40,378.32
  6. Step 6: Final answer
    x = 18,435.22

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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.