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Finding the Fourth Proportional to 13,703.19, 20,554.71 and 3,314.94

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Solution

The fourth proportional to 13,703.19, 20,554.71 and 3,314.94 is: 4,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.19 : 20,554.71 = 3,314.94 : x
  2. Step 2: Convert to fraction form
    13,703.19/20,554.71 = 3,314.94/x
  3. Step 3: Cross multiply
    13,703.19x = 20,554.71 × 3,314.94
  4. Step 4: Simplify right side
    13,703.19x = 68,137,630.37
  5. Step 5: Solve for x
    x = 68,137,630.37/13,703.19
  6. Step 6: Final answer
    x = 4,972.39

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