Home / 20,577.72-30,870.42-6,736.44

Finding the Fourth Proportional to 20,577.72, 30,870.42 and 6,736.44

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Solution

The fourth proportional to 20,577.72, 30,870.42 and 6,736.44 is: 10,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.72 : 30,870.42 = 6,736.44 : x
  2. Step 2: Convert to fraction form
    20,577.72/30,870.42 = 6,736.44/x
  3. Step 3: Cross multiply
    20,577.72x = 30,870.42 × 6,736.44
  4. Step 4: Simplify right side
    20,577.72x = 207,956,732.10
  5. Step 5: Solve for x
    x = 207,956,732.10/20,577.72
  6. Step 6: Final answer
    x = 10,105.92

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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.