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Finding the Fourth Proportional to 30,286.99, 41,813.43 and 20,248.66

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Solution

The fourth proportional to 30,286.99, 41,813.43 and 20,248.66 is: 27,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.99 : 41,813.43 = 20,248.66 : x
  2. Step 2: Convert to fraction form
    30,286.99/41,813.43 = 20,248.66/x
  3. Step 3: Cross multiply
    30,286.99x = 41,813.43 × 20,248.66
  4. Step 4: Simplify right side
    30,286.99x = 846,665,927.50
  5. Step 5: Solve for x
    x = 846,665,927.50/30,286.99
  6. Step 6: Final answer
    x = 27,954.77

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