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Finding the Fourth Proportional to 30,179.40, 45,225.90 and 22,219.80

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Solution

The fourth proportional to 30,179.40, 45,225.90 and 22,219.80 is: 33,297.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.40 : 45,225.90 = 22,219.80 : x
  2. Step 2: Convert to fraction form
    30,179.40/45,225.90 = 22,219.80/x
  3. Step 3: Cross multiply
    30,179.40x = 45,225.90 × 22,219.80
  4. Step 4: Simplify right side
    30,179.40x = 1,004,910,452.82
  5. Step 5: Solve for x
    x = 1,004,910,452.82/30,179.40
  6. Step 6: Final answer
    x = 33,297.89

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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.