Home / 15,516.73-21,438.17-10,821.97

Finding the Fourth Proportional to 15,516.73, 21,438.17 and 10,821.97

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Solution

The fourth proportional to 15,516.73, 21,438.17 and 10,821.97 is: 14,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.73 : 21,438.17 = 10,821.97 : x
  2. Step 2: Convert to fraction form
    15,516.73/21,438.17 = 10,821.97/x
  3. Step 3: Cross multiply
    15,516.73x = 21,438.17 × 10,821.97
  4. Step 4: Simplify right side
    15,516.73x = 232,003,232.59
  5. Step 5: Solve for x
    x = 232,003,232.59/15,516.73
  6. Step 6: Final answer
    x = 14,951.81

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