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Finding the Fourth Proportional to 47,980.34, 71,978.71 and 16,388.67

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Solution

The fourth proportional to 47,980.34, 71,978.71 and 16,388.67 is: 24,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,980.34 : 71,978.71 = 16,388.67 : x
  2. Step 2: Convert to fraction form
    47,980.34/71,978.71 = 16,388.67/x
  3. Step 3: Cross multiply
    47,980.34x = 71,978.71 × 16,388.67
  4. Step 4: Simplify right side
    47,980.34x = 1,179,635,325.22
  5. Step 5: Solve for x
    x = 1,179,635,325.22/47,980.34
  6. Step 6: Final answer
    x = 24,585.81

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