Home / 19,431.75-29,107.89-9,540.03

Finding the Fourth Proportional to 19,431.75, 29,107.89 and 9,540.03

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Solution

The fourth proportional to 19,431.75, 29,107.89 and 9,540.03 is: 14,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.75 : 29,107.89 = 9,540.03 : x
  2. Step 2: Convert to fraction form
    19,431.75/29,107.89 = 9,540.03/x
  3. Step 3: Cross multiply
    19,431.75x = 29,107.89 × 9,540.03
  4. Step 4: Simplify right side
    19,431.75x = 277,690,143.84
  5. Step 5: Solve for x
    x = 277,690,143.84/19,431.75
  6. Step 6: Final answer
    x = 14,290.54

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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.