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Finding the Fourth Proportional to 30,665.36, 45,881.40 and 18,949.52

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Solution

The fourth proportional to 30,665.36, 45,881.40 and 18,949.52 is: 28,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.36 : 45,881.40 = 18,949.52 : x
  2. Step 2: Convert to fraction form
    30,665.36/45,881.40 = 18,949.52/x
  3. Step 3: Cross multiply
    30,665.36x = 45,881.40 × 18,949.52
  4. Step 4: Simplify right side
    30,665.36x = 869,430,506.93
  5. Step 5: Solve for x
    x = 869,430,506.93/30,665.36
  6. Step 6: Final answer
    x = 28,352.20

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