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Finding the Fourth Proportional to 34,628.51, 47,812.94 and 21,218.08

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Solution

The fourth proportional to 34,628.51, 47,812.94 and 21,218.08 is: 29,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,628.51 : 47,812.94 = 21,218.08 : x
  2. Step 2: Convert to fraction form
    34,628.51/47,812.94 = 21,218.08/x
  3. Step 3: Cross multiply
    34,628.51x = 47,812.94 × 21,218.08
  4. Step 4: Simplify right side
    34,628.51x = 1,014,498,679.86
  5. Step 5: Solve for x
    x = 1,014,498,679.86/34,628.51
  6. Step 6: Final answer
    x = 29,296.63

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