Home / 31,728.97-47,593.32-18,664.48

Finding the Fourth Proportional to 31,728.97, 47,593.32 and 18,664.48

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Solution

The fourth proportional to 31,728.97, 47,593.32 and 18,664.48 is: 27,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.97 : 47,593.32 = 18,664.48 : x
  2. Step 2: Convert to fraction form
    31,728.97/47,593.32 = 18,664.48/x
  3. Step 3: Cross multiply
    31,728.97x = 47,593.32 × 18,664.48
  4. Step 4: Simplify right side
    31,728.97x = 888,304,569.27
  5. Step 5: Solve for x
    x = 888,304,569.27/31,728.97
  6. Step 6: Final answer
    x = 27,996.64

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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.