Home / 30,105.80-45,012.90-22,232.60

Finding the Fourth Proportional to 30,105.80, 45,012.90 and 22,232.60

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Solution

The fourth proportional to 30,105.80, 45,012.90 and 22,232.60 is: 33,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.80 : 45,012.90 = 22,232.60 : x
  2. Step 2: Convert to fraction form
    30,105.80/45,012.90 = 22,232.60/x
  3. Step 3: Cross multiply
    30,105.80x = 45,012.90 × 22,232.60
  4. Step 4: Simplify right side
    30,105.80x = 1,000,753,800.54
  5. Step 5: Solve for x
    x = 1,000,753,800.54/30,105.80
  6. Step 6: Final answer
    x = 33,241.23

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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.