Home / 30,551.82-45,722.97-21,202.44

Finding the Fourth Proportional to 30,551.82, 45,722.97 and 21,202.44

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Solution

The fourth proportional to 30,551.82, 45,722.97 and 21,202.44 is: 31,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.82 : 45,722.97 = 21,202.44 : x
  2. Step 2: Convert to fraction form
    30,551.82/45,722.97 = 21,202.44/x
  3. Step 3: Cross multiply
    30,551.82x = 45,722.97 × 21,202.44
  4. Step 4: Simplify right side
    30,551.82x = 969,438,528.05
  5. Step 5: Solve for x
    x = 969,438,528.05/30,551.82
  6. Step 6: Final answer
    x = 31,730.96

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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.