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Finding the Fourth Proportional to 39,181.70, 54,070.58 and 21,276.56

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Solution

The fourth proportional to 39,181.70, 54,070.58 and 21,276.56 is: 29,361.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.70 : 54,070.58 = 21,276.56 : x
  2. Step 2: Convert to fraction form
    39,181.70/54,070.58 = 21,276.56/x
  3. Step 3: Cross multiply
    39,181.70x = 54,070.58 × 21,276.56
  4. Step 4: Simplify right side
    39,181.70x = 1,150,435,939.60
  5. Step 5: Solve for x
    x = 1,150,435,939.60/39,181.70
  6. Step 6: Final answer
    x = 29,361.56

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