Home / 20,682.50-28,546.91-11,735.24

Finding the Fourth Proportional to 20,682.50, 28,546.91 and 11,735.24

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Solution

The fourth proportional to 20,682.50, 28,546.91 and 11,735.24 is: 16,197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.50 : 28,546.91 = 11,735.24 : x
  2. Step 2: Convert to fraction form
    20,682.50/28,546.91 = 11,735.24/x
  3. Step 3: Cross multiply
    20,682.50x = 28,546.91 × 11,735.24
  4. Step 4: Simplify right side
    20,682.50x = 335,004,781.43
  5. Step 5: Solve for x
    x = 335,004,781.43/20,682.50
  6. Step 6: Final answer
    x = 16,197.50

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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.