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Finding the Fourth Proportional to 21,113.01, 31,664.76 and 6,320.04

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Solution

The fourth proportional to 21,113.01, 31,664.76 and 6,320.04 is: 9,478.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113.01 : 31,664.76 = 6,320.04 : x
  2. Step 2: Convert to fraction form
    21,113.01/31,664.76 = 6,320.04/x
  3. Step 3: Cross multiply
    21,113.01x = 31,664.76 × 6,320.04
  4. Step 4: Simplify right side
    21,113.01x = 200,122,549.79
  5. Step 5: Solve for x
    x = 200,122,549.79/21,113.01
  6. Step 6: Final answer
    x = 9,478.64

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