Home / 19,020.96-28,512.26-7,933.78

Finding the Fourth Proportional to 19,020.96, 28,512.26 and 7,933.78

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Solution

The fourth proportional to 19,020.96, 28,512.26 and 7,933.78 is: 11,892.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.96 : 28,512.26 = 7,933.78 : x
  2. Step 2: Convert to fraction form
    19,020.96/28,512.26 = 7,933.78/x
  3. Step 3: Cross multiply
    19,020.96x = 28,512.26 × 7,933.78
  4. Step 4: Simplify right side
    19,020.96x = 226,209,998.14
  5. Step 5: Solve for x
    x = 226,209,998.14/19,020.96
  6. Step 6: Final answer
    x = 11,892.67

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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.