Home / 31,308.39-43,203.97-17,158.50

Finding the Fourth Proportional to 31,308.39, 43,203.97 and 17,158.50

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Solution

The fourth proportional to 31,308.39, 43,203.97 and 17,158.50 is: 23,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.39 : 43,203.97 = 17,158.50 : x
  2. Step 2: Convert to fraction form
    31,308.39/43,203.97 = 17,158.50/x
  3. Step 3: Cross multiply
    31,308.39x = 43,203.97 × 17,158.50
  4. Step 4: Simplify right side
    31,308.39x = 741,315,319.25
  5. Step 5: Solve for x
    x = 741,315,319.25/31,308.39
  6. Step 6: Final answer
    x = 23,677.85

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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.