Home / 28,174.88-42,241.36-17,078.89

Finding the Fourth Proportional to 28,174.88, 42,241.36 and 17,078.89

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Solution

The fourth proportional to 28,174.88, 42,241.36 and 17,078.89 is: 25,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.88 : 42,241.36 = 17,078.89 : x
  2. Step 2: Convert to fraction form
    28,174.88/42,241.36 = 17,078.89/x
  3. Step 3: Cross multiply
    28,174.88x = 42,241.36 × 17,078.89
  4. Step 4: Simplify right side
    28,174.88x = 721,435,540.89
  5. Step 5: Solve for x
    x = 721,435,540.89/28,174.88
  6. Step 6: Final answer
    x = 25,605.63

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1.5x scale

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.