Home / 31,385.32-43,380.60-27,579.88

Finding the Fourth Proportional to 31,385.32, 43,380.60 and 27,579.88

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Solution

The fourth proportional to 31,385.32, 43,380.60 and 27,579.88 is: 38,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.32 : 43,380.60 = 27,579.88 : x
  2. Step 2: Convert to fraction form
    31,385.32/43,380.60 = 27,579.88/x
  3. Step 3: Cross multiply
    31,385.32x = 43,380.60 × 27,579.88
  4. Step 4: Simplify right side
    31,385.32x = 1,196,431,742.33
  5. Step 5: Solve for x
    x = 1,196,431,742.33/31,385.32
  6. Step 6: Final answer
    x = 38,120.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.