Home / 47,978.40-71,965.32-16,811.28

Finding the Fourth Proportional to 47,978.40, 71,965.32 and 16,811.28

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Solution

The fourth proportional to 47,978.40, 71,965.32 and 16,811.28 is: 25,216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,978.40 : 71,965.32 = 16,811.28 : x
  2. Step 2: Convert to fraction form
    47,978.40/71,965.32 = 16,811.28/x
  3. Step 3: Cross multiply
    47,978.40x = 71,965.32 × 16,811.28
  4. Step 4: Simplify right side
    47,978.40x = 1,209,829,144.81
  5. Step 5: Solve for x
    x = 1,209,829,144.81/47,978.40
  6. Step 6: Final answer
    x = 25,216.12

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