Home / 20,241.45-27,933.15-11,288.97

Finding the Fourth Proportional to 20,241.45, 27,933.15 and 11,288.97

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Solution

The fourth proportional to 20,241.45, 27,933.15 and 11,288.97 is: 15,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.45 : 27,933.15 = 11,288.97 : x
  2. Step 2: Convert to fraction form
    20,241.45/27,933.15 = 11,288.97/x
  3. Step 3: Cross multiply
    20,241.45x = 27,933.15 × 11,288.97
  4. Step 4: Simplify right side
    20,241.45x = 315,336,492.36
  5. Step 5: Solve for x
    x = 315,336,492.36/20,241.45
  6. Step 6: Final answer
    x = 15,578.75

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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.