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Finding the Fourth Proportional to 20,076.57, 30,119.64 and 6,929.06

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Solution

The fourth proportional to 20,076.57, 30,119.64 and 6,929.06 is: 10,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.57 : 30,119.64 = 6,929.06 : x
  2. Step 2: Convert to fraction form
    20,076.57/30,119.64 = 6,929.06/x
  3. Step 3: Cross multiply
    20,076.57x = 30,119.64 × 6,929.06
  4. Step 4: Simplify right side
    20,076.57x = 208,700,642.14
  5. Step 5: Solve for x
    x = 208,700,642.14/20,076.57
  6. Step 6: Final answer
    x = 10,395.23

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