Home / 19,120.05-28,680.08-5,972.43

Finding the Fourth Proportional to 19,120.05, 28,680.08 and 5,972.43

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Solution

The fourth proportional to 19,120.05, 28,680.08 and 5,972.43 is: 8,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.05 : 28,680.08 = 5,972.43 : x
  2. Step 2: Convert to fraction form
    19,120.05/28,680.08 = 5,972.43/x
  3. Step 3: Cross multiply
    19,120.05x = 28,680.08 × 5,972.43
  4. Step 4: Simplify right side
    19,120.05x = 171,289,847.88
  5. Step 5: Solve for x
    x = 171,289,847.88/19,120.05
  6. Step 6: Final answer
    x = 8,958.65

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Similar ratio
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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.