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Finding the Fourth Proportional to 30,245.85, 45,351.03 and 9,179.55

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Solution

The fourth proportional to 30,245.85, 45,351.03 and 9,179.55 is: 13,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.85 : 45,351.03 = 9,179.55 : x
  2. Step 2: Convert to fraction form
    30,245.85/45,351.03 = 9,179.55/x
  3. Step 3: Cross multiply
    30,245.85x = 45,351.03 × 9,179.55
  4. Step 4: Simplify right side
    30,245.85x = 416,302,047.44
  5. Step 5: Solve for x
    x = 416,302,047.44/30,245.85
  6. Step 6: Final answer
    x = 13,763.94

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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.