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Finding the Fourth Proportional to 25,902.72, 38,831.60 and 13,416.16

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Solution

The fourth proportional to 25,902.72, 38,831.60 and 13,416.16 is: 20,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,902.72 : 38,831.60 = 13,416.16 : x
  2. Step 2: Convert to fraction form
    25,902.72/38,831.60 = 13,416.16/x
  3. Step 3: Cross multiply
    25,902.72x = 38,831.60 × 13,416.16
  4. Step 4: Simplify right side
    25,902.72x = 520,970,958.66
  5. Step 5: Solve for x
    x = 520,970,958.66/25,902.72
  6. Step 6: Final answer
    x = 20,112.60

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