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Finding the Fourth Proportional to 29,990.55, 44,975.59 and 21,645.78

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Solution

The fourth proportional to 29,990.55, 44,975.59 and 21,645.78 is: 32,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,990.55 : 44,975.59 = 21,645.78 : x
  2. Step 2: Convert to fraction form
    29,990.55/44,975.59 = 21,645.78/x
  3. Step 3: Cross multiply
    29,990.55x = 44,975.59 × 21,645.78
  4. Step 4: Simplify right side
    29,990.55x = 973,531,726.51
  5. Step 5: Solve for x
    x = 973,531,726.51/29,990.55
  6. Step 6: Final answer
    x = 32,461.28

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