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Finding the Fourth Proportional to 21,955.80, 32,929.98 and 6,157.20

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Solution

The fourth proportional to 21,955.80, 32,929.98 and 6,157.20 is: 9,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.80 : 32,929.98 = 6,157.20 : x
  2. Step 2: Convert to fraction form
    21,955.80/32,929.98 = 6,157.20/x
  3. Step 3: Cross multiply
    21,955.80x = 32,929.98 × 6,157.20
  4. Step 4: Simplify right side
    21,955.80x = 202,756,472.86
  5. Step 5: Solve for x
    x = 202,756,472.86/21,955.80
  6. Step 6: Final answer
    x = 9,234.76

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