Home / 20,908.44-28,813.79-20,524.15

Finding the Fourth Proportional to 20,908.44, 28,813.79 and 20,524.15

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Solution

The fourth proportional to 20,908.44, 28,813.79 and 20,524.15 is: 28,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.44 : 28,813.79 = 20,524.15 : x
  2. Step 2: Convert to fraction form
    20,908.44/28,813.79 = 20,524.15/x
  3. Step 3: Cross multiply
    20,908.44x = 28,813.79 × 20,524.15
  4. Step 4: Simplify right side
    20,908.44x = 591,378,548.03
  5. Step 5: Solve for x
    x = 591,378,548.03/20,908.44
  6. Step 6: Final answer
    x = 28,284.20

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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.