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Finding the Fourth Proportional to 35,958.14, 53,899.78 and 20,139.98

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Solution

The fourth proportional to 35,958.14, 53,899.78 and 20,139.98 is: 30,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,958.14 : 53,899.78 = 20,139.98 : x
  2. Step 2: Convert to fraction form
    35,958.14/53,899.78 = 20,139.98/x
  3. Step 3: Cross multiply
    35,958.14x = 53,899.78 × 20,139.98
  4. Step 4: Simplify right side
    35,958.14x = 1,085,540,491.20
  5. Step 5: Solve for x
    x = 1,085,540,491.20/35,958.14
  6. Step 6: Final answer
    x = 30,189.01

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