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Finding the Fourth Proportional to 39,602.00, 54,647.91 and 21,694.11

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Solution

The fourth proportional to 39,602.00, 54,647.91 and 21,694.11 is: 29,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,602.00 : 54,647.91 = 21,694.11 : x
  2. Step 2: Convert to fraction form
    39,602.00/54,647.91 = 21,694.11/x
  3. Step 3: Cross multiply
    39,602.00x = 54,647.91 × 21,694.11
  4. Step 4: Simplify right side
    39,602.00x = 1,185,537,770.81
  5. Step 5: Solve for x
    x = 1,185,537,770.81/39,602.00
  6. Step 6: Final answer
    x = 29,936.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.