Home / 31,728.16-43,781.44-17,579.60

Finding the Fourth Proportional to 31,728.16, 43,781.44 and 17,579.60

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Solution

The fourth proportional to 31,728.16, 43,781.44 and 17,579.60 is: 24,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.16 : 43,781.44 = 17,579.60 : x
  2. Step 2: Convert to fraction form
    31,728.16/43,781.44 = 17,579.60/x
  3. Step 3: Cross multiply
    31,728.16x = 43,781.44 × 17,579.60
  4. Step 4: Simplify right side
    31,728.16x = 769,660,202.62
  5. Step 5: Solve for x
    x = 769,660,202.62/31,728.16
  6. Step 6: Final answer
    x = 24,257.95

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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.