Home / 20,674.73-31,012.11-5,092.36

Finding the Fourth Proportional to 20,674.73, 31,012.11 and 5,092.36

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Solution

The fourth proportional to 20,674.73, 31,012.11 and 5,092.36 is: 7,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.73 : 31,012.11 = 5,092.36 : x
  2. Step 2: Convert to fraction form
    20,674.73/31,012.11 = 5,092.36/x
  3. Step 3: Cross multiply
    20,674.73x = 31,012.11 × 5,092.36
  4. Step 4: Simplify right side
    20,674.73x = 157,924,647.96
  5. Step 5: Solve for x
    x = 157,924,647.96/20,674.73
  6. Step 6: Final answer
    x = 7,638.53

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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.