Home / 20,674.90-31,012.44-5,092.54

Finding the Fourth Proportional to 20,674.90, 31,012.44 and 5,092.54

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Solution

The fourth proportional to 20,674.90, 31,012.44 and 5,092.54 is: 7,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.90 : 31,012.44 = 5,092.54 : x
  2. Step 2: Convert to fraction form
    20,674.90/31,012.44 = 5,092.54/x
  3. Step 3: Cross multiply
    20,674.90x = 31,012.44 × 5,092.54
  4. Step 4: Simplify right side
    20,674.90x = 157,932,091.20
  5. Step 5: Solve for x
    x = 157,932,091.20/20,674.90
  6. Step 6: Final answer
    x = 7,638.83

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1.5x scale

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.