Home / 20,242.24-27,933.28-11,289.44

Finding the Fourth Proportional to 20,242.24, 27,933.28 and 11,289.44

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Solution

The fourth proportional to 20,242.24, 27,933.28 and 11,289.44 is: 15,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.24 : 27,933.28 = 11,289.44 : x
  2. Step 2: Convert to fraction form
    20,242.24/27,933.28 = 11,289.44/x
  3. Step 3: Cross multiply
    20,242.24x = 27,933.28 × 11,289.44
  4. Step 4: Simplify right side
    20,242.24x = 315,351,088.56
  5. Step 5: Solve for x
    x = 315,351,088.56/20,242.24
  6. Step 6: Final answer
    x = 15,578.86

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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.