Home / 40,243.80-60,317.10-20,512.20

Finding the Fourth Proportional to 40,243.80, 60,317.10 and 20,512.20

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Solution

The fourth proportional to 40,243.80, 60,317.10 and 20,512.20 is: 30,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,243.80 : 60,317.10 = 20,512.20 : x
  2. Step 2: Convert to fraction form
    40,243.80/60,317.10 = 20,512.20/x
  3. Step 3: Cross multiply
    40,243.80x = 60,317.10 × 20,512.20
  4. Step 4: Simplify right side
    40,243.80x = 1,237,236,418.62
  5. Step 5: Solve for x
    x = 1,237,236,418.62/40,243.80
  6. Step 6: Final answer
    x = 30,743.53

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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.