Home / 31,469.12-43,427.39-17,129.01

Finding the Fourth Proportional to 31,469.12, 43,427.39 and 17,129.01

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Solution

The fourth proportional to 31,469.12, 43,427.39 and 17,129.01 is: 23,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.12 : 43,427.39 = 17,129.01 : x
  2. Step 2: Convert to fraction form
    31,469.12/43,427.39 = 17,129.01/x
  3. Step 3: Cross multiply
    31,469.12x = 43,427.39 × 17,129.01
  4. Step 4: Simplify right side
    31,469.12x = 743,867,894.80
  5. Step 5: Solve for x
    x = 743,867,894.80/31,469.12
  6. Step 6: Final answer
    x = 23,638.03

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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.