Home / 20,629.61-28,469.54-11,676.92

Finding the Fourth Proportional to 20,629.61, 28,469.54 and 11,676.92

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Solution

The fourth proportional to 20,629.61, 28,469.54 and 11,676.92 is: 16,114.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.61 : 28,469.54 = 11,676.92 : x
  2. Step 2: Convert to fraction form
    20,629.61/28,469.54 = 11,676.92/x
  3. Step 3: Cross multiply
    20,629.61x = 28,469.54 × 11,676.92
  4. Step 4: Simplify right side
    20,629.61x = 332,436,434.04
  5. Step 5: Solve for x
    x = 332,436,434.04/20,629.61
  6. Step 6: Final answer
    x = 16,114.53

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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.