Home / 33,662.20-46,437.30-21,721

Finding the Fourth Proportional to 33,662.20, 46,437.30 and 21,721

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Solution

The fourth proportional to 33,662.20, 46,437.30 and 21,721 is: 29,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,662.20 : 46,437.30 = 21,721 : x
  2. Step 2: Convert to fraction form
    33,662.20/46,437.30 = 21,721/x
  3. Step 3: Cross multiply
    33,662.20x = 46,437.30 × 21,721
  4. Step 4: Simplify right side
    33,662.20x = 1,008,664,593.30
  5. Step 5: Solve for x
    x = 1,008,664,593.30/33,662.20
  6. Step 6: Final answer
    x = 29,964.31

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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.