Home / 31,871.67-43,982.28-17,724.21

Finding the Fourth Proportional to 31,871.67, 43,982.28 and 17,724.21

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Solution

The fourth proportional to 31,871.67, 43,982.28 and 17,724.21 is: 24,459.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,871.67 : 43,982.28 = 17,724.21 : x
  2. Step 2: Convert to fraction form
    31,871.67/43,982.28 = 17,724.21/x
  3. Step 3: Cross multiply
    31,871.67x = 43,982.28 × 17,724.21
  4. Step 4: Simplify right side
    31,871.67x = 779,551,167.00
  5. Step 5: Solve for x
    x = 779,551,167.00/31,871.67
  6. Step 6: Final answer
    x = 24,459.06

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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.