Home / 20,540.44-30,812.55-9,450.19

Finding the Fourth Proportional to 20,540.44, 30,812.55 and 9,450.19

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Solution

The fourth proportional to 20,540.44, 30,812.55 and 9,450.19 is: 14,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.44 : 30,812.55 = 9,450.19 : x
  2. Step 2: Convert to fraction form
    20,540.44/30,812.55 = 9,450.19/x
  3. Step 3: Cross multiply
    20,540.44x = 30,812.55 × 9,450.19
  4. Step 4: Simplify right side
    20,540.44x = 291,184,451.88
  5. Step 5: Solve for x
    x = 291,184,451.88/20,540.44
  6. Step 6: Final answer
    x = 14,176.15

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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.