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Finding the Fourth Proportional to 30,708, 46,062 and 8,820

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Solution

The fourth proportional to 30,708, 46,062 and 8,820 is: 13,230

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,708 : 46,062 = 8,820 : x
  2. Step 2: Convert to fraction form
    30,708/46,062 = 8,820/x
  3. Step 3: Cross multiply
    30,708x = 46,062 × 8,820
  4. Step 4: Simplify right side
    30,708x = 406,266,840
  5. Step 5: Solve for x
    x = 406,266,840/30,708
  6. Step 6: Final answer
    x = 13,230

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