Home / 20,627.24-28,464.30-11,676.56

Finding the Fourth Proportional to 20,627.24, 28,464.30 and 11,676.56

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Solution

The fourth proportional to 20,627.24, 28,464.30 and 11,676.56 is: 16,112.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.24 : 28,464.30 = 11,676.56 : x
  2. Step 2: Convert to fraction form
    20,627.24/28,464.30 = 11,676.56/x
  3. Step 3: Cross multiply
    20,627.24x = 28,464.30 × 11,676.56
  4. Step 4: Simplify right side
    20,627.24x = 332,365,106.81
  5. Step 5: Solve for x
    x = 332,365,106.81/20,627.24
  6. Step 6: Final answer
    x = 16,112.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.