Home / 22,788.14-31,447.78-13,356.77

Finding the Fourth Proportional to 22,788.14, 31,447.78 and 13,356.77

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Solution

The fourth proportional to 22,788.14, 31,447.78 and 13,356.77 is: 18,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,788.14 : 31,447.78 = 13,356.77 : x
  2. Step 2: Convert to fraction form
    22,788.14/31,447.78 = 13,356.77/x
  3. Step 3: Cross multiply
    22,788.14x = 31,447.78 × 13,356.77
  4. Step 4: Simplify right side
    22,788.14x = 420,040,573.84
  5. Step 5: Solve for x
    x = 420,040,573.84/22,788.14
  6. Step 6: Final answer
    x = 18,432.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.