Home / 31,727.12-43,784.40-17,581.28

Finding the Fourth Proportional to 31,727.12, 43,784.40 and 17,581.28

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Solution

The fourth proportional to 31,727.12, 43,784.40 and 17,581.28 is: 24,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,727.12 : 43,784.40 = 17,581.28 : x
  2. Step 2: Convert to fraction form
    31,727.12/43,784.40 = 17,581.28/x
  3. Step 3: Cross multiply
    31,727.12x = 43,784.40 × 17,581.28
  4. Step 4: Simplify right side
    31,727.12x = 769,785,796.03
  5. Step 5: Solve for x
    x = 769,785,796.03/31,727.12
  6. Step 6: Final answer
    x = 24,262.71

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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.