Home / 20,353.14-30,527.82-7,865.64

Finding the Fourth Proportional to 20,353.14, 30,527.82 and 7,865.64

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Solution

The fourth proportional to 20,353.14, 30,527.82 and 7,865.64 is: 11,797.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.14 : 30,527.82 = 7,865.64 : x
  2. Step 2: Convert to fraction form
    20,353.14/30,527.82 = 7,865.64/x
  3. Step 3: Cross multiply
    20,353.14x = 30,527.82 × 7,865.64
  4. Step 4: Simplify right side
    20,353.14x = 240,120,842.10
  5. Step 5: Solve for x
    x = 240,120,842.10/20,353.14
  6. Step 6: Final answer
    x = 11,797.73

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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.