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Finding the Fourth Proportional to 34,718.04, 47,921.04 and 20,381.58

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Solution

The fourth proportional to 34,718.04, 47,921.04 and 20,381.58 is: 28,132.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,718.04 : 47,921.04 = 20,381.58 : x
  2. Step 2: Convert to fraction form
    34,718.04/47,921.04 = 20,381.58/x
  3. Step 3: Cross multiply
    34,718.04x = 47,921.04 × 20,381.58
  4. Step 4: Simplify right side
    34,718.04x = 976,706,510.44
  5. Step 5: Solve for x
    x = 976,706,510.44/34,718.04
  6. Step 6: Final answer
    x = 28,132.54

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