Home / 40,654.05-60,991.97-20,921.82

Finding the Fourth Proportional to 40,654.05, 60,991.97 and 20,921.82

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Solution

The fourth proportional to 40,654.05, 60,991.97 and 20,921.82 is: 31,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,654.05 : 60,991.97 = 20,921.82 : x
  2. Step 2: Convert to fraction form
    40,654.05/60,991.97 = 20,921.82/x
  3. Step 3: Cross multiply
    40,654.05x = 60,991.97 × 20,921.82
  4. Step 4: Simplify right side
    40,654.05x = 1,276,062,913.18
  5. Step 5: Solve for x
    x = 1,276,062,913.18/40,654.05
  6. Step 6: Final answer
    x = 31,388.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.