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Finding the Fourth Proportional to 21,708.84, 29,925.54 and 16,984.92

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Solution

The fourth proportional to 21,708.84, 29,925.54 and 16,984.92 is: 23,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.84 : 29,925.54 = 16,984.92 : x
  2. Step 2: Convert to fraction form
    21,708.84/29,925.54 = 16,984.92/x
  3. Step 3: Cross multiply
    21,708.84x = 29,925.54 × 16,984.92
  4. Step 4: Simplify right side
    21,708.84x = 508,282,902.86
  5. Step 5: Solve for x
    x = 508,282,902.86/21,708.84
  6. Step 6: Final answer
    x = 23,413.64

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