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Finding the Fourth Proportional to 28,935.40, 39,930.66 and 16,360.20

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Solution

The fourth proportional to 28,935.40, 39,930.66 and 16,360.20 is: 22,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.40 : 39,930.66 = 16,360.20 : x
  2. Step 2: Convert to fraction form
    28,935.40/39,930.66 = 16,360.20/x
  3. Step 3: Cross multiply
    28,935.40x = 39,930.66 × 16,360.20
  4. Step 4: Simplify right side
    28,935.40x = 653,273,583.73
  5. Step 5: Solve for x
    x = 653,273,583.73/28,935.40
  6. Step 6: Final answer
    x = 22,576.97

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