Home / 39,654.84-54,723.62-21,749.90

Finding the Fourth Proportional to 39,654.84, 54,723.62 and 21,749.90

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Solution

The fourth proportional to 39,654.84, 54,723.62 and 21,749.90 is: 30,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,654.84 : 54,723.62 = 21,749.90 : x
  2. Step 2: Convert to fraction form
    39,654.84/54,723.62 = 21,749.90/x
  3. Step 3: Cross multiply
    39,654.84x = 54,723.62 × 21,749.90
  4. Step 4: Simplify right side
    39,654.84x = 1,190,233,262.64
  5. Step 5: Solve for x
    x = 1,190,233,262.64/39,654.84
  6. Step 6: Final answer
    x = 30,014.83

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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.