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Finding the Fourth Proportional to 20,941.74, 31,404.31 and 9,246.76

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Solution

The fourth proportional to 20,941.74, 31,404.31 and 9,246.76 is: 13,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.74 : 31,404.31 = 9,246.76 : x
  2. Step 2: Convert to fraction form
    20,941.74/31,404.31 = 9,246.76/x
  3. Step 3: Cross multiply
    20,941.74x = 31,404.31 × 9,246.76
  4. Step 4: Simplify right side
    20,941.74x = 290,388,015.91
  5. Step 5: Solve for x
    x = 290,388,015.91/20,941.74
  6. Step 6: Final answer
    x = 13,866.47

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