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Finding the Fourth Proportional to 20,620.96, 30,903.90 and 10,739.52

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Solution

The fourth proportional to 20,620.96, 30,903.90 and 10,739.52 is: 16,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.96 : 30,903.90 = 10,739.52 : x
  2. Step 2: Convert to fraction form
    20,620.96/30,903.90 = 10,739.52/x
  3. Step 3: Cross multiply
    20,620.96x = 30,903.90 × 10,739.52
  4. Step 4: Simplify right side
    20,620.96x = 331,893,052.13
  5. Step 5: Solve for x
    x = 331,893,052.13/20,620.96
  6. Step 6: Final answer
    x = 16,094.94

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