Home / 17,089.40-25,629.30-5,406.20

Finding the Fourth Proportional to 17,089.40, 25,629.30 and 5,406.20

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Solution

The fourth proportional to 17,089.40, 25,629.30 and 5,406.20 is: 8,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,089.40 : 25,629.30 = 5,406.20 : x
  2. Step 2: Convert to fraction form
    17,089.40/25,629.30 = 5,406.20/x
  3. Step 3: Cross multiply
    17,089.40x = 25,629.30 × 5,406.20
  4. Step 4: Simplify right side
    17,089.40x = 138,557,121.66
  5. Step 5: Solve for x
    x = 138,557,121.66/17,089.40
  6. Step 6: Final answer
    x = 8,107.78

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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.