Home / 30,608.30-45,912.45-28,081.10

Finding the Fourth Proportional to 30,608.30, 45,912.45 and 28,081.10

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Solution

The fourth proportional to 30,608.30, 45,912.45 and 28,081.10 is: 42,121.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.30 : 45,912.45 = 28,081.10 : x
  2. Step 2: Convert to fraction form
    30,608.30/45,912.45 = 28,081.10/x
  3. Step 3: Cross multiply
    30,608.30x = 45,912.45 × 28,081.10
  4. Step 4: Simplify right side
    30,608.30x = 1,289,272,099.70
  5. Step 5: Solve for x
    x = 1,289,272,099.70/30,608.30
  6. Step 6: Final answer
    x = 42,121.65

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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.