Home / 21,974.52-30,317.31-12,413.28

Finding the Fourth Proportional to 21,974.52, 30,317.31 and 12,413.28

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Solution

The fourth proportional to 21,974.52, 30,317.31 and 12,413.28 is: 17,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.52 : 30,317.31 = 12,413.28 : x
  2. Step 2: Convert to fraction form
    21,974.52/30,317.31 = 12,413.28/x
  3. Step 3: Cross multiply
    21,974.52x = 30,317.31 × 12,413.28
  4. Step 4: Simplify right side
    21,974.52x = 376,337,257.88
  5. Step 5: Solve for x
    x = 376,337,257.88/21,974.52
  6. Step 6: Final answer
    x = 17,126.07

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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.