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Finding the Fourth Proportional to 39,184.64, 54,074.88 and 21,279.44

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Solution

The fourth proportional to 39,184.64, 54,074.88 and 21,279.44 is: 29,365.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,184.64 : 54,074.88 = 21,279.44 : x
  2. Step 2: Convert to fraction form
    39,184.64/54,074.88 = 21,279.44/x
  3. Step 3: Cross multiply
    39,184.64x = 54,074.88 × 21,279.44
  4. Step 4: Simplify right side
    39,184.64x = 1,150,683,164.47
  5. Step 5: Solve for x
    x = 1,150,683,164.47/39,184.64
  6. Step 6: Final answer
    x = 29,365.67

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