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Finding the Fourth Proportional to 29,278.78, 40,394.76 and 16,530.46

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Solution

The fourth proportional to 29,278.78, 40,394.76 and 16,530.46 is: 22,806.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.78 : 40,394.76 = 16,530.46 : x
  2. Step 2: Convert to fraction form
    29,278.78/40,394.76 = 16,530.46/x
  3. Step 3: Cross multiply
    29,278.78x = 40,394.76 × 16,530.46
  4. Step 4: Simplify right side
    29,278.78x = 667,743,964.39
  5. Step 5: Solve for x
    x = 667,743,964.39/29,278.78
  6. Step 6: Final answer
    x = 22,806.41

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