Home / 28,078.31-42,092.67-11,452.25

Finding the Fourth Proportional to 28,078.31, 42,092.67 and 11,452.25

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Solution

The fourth proportional to 28,078.31, 42,092.67 and 11,452.25 is: 17,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.31 : 42,092.67 = 11,452.25 : x
  2. Step 2: Convert to fraction form
    28,078.31/42,092.67 = 11,452.25/x
  3. Step 3: Cross multiply
    28,078.31x = 42,092.67 × 11,452.25
  4. Step 4: Simplify right side
    28,078.31x = 482,055,780.01
  5. Step 5: Solve for x
    x = 482,055,780.01/28,078.31
  6. Step 6: Final answer
    x = 17,168.26

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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.