Home / 20,241.76-27,933-11,289.04

Finding the Fourth Proportional to 20,241.76, 27,933 and 11,289.04

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Solution

The fourth proportional to 20,241.76, 27,933 and 11,289.04 is: 15,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.76 : 27,933 = 11,289.04 : x
  2. Step 2: Convert to fraction form
    20,241.76/27,933 = 11,289.04/x
  3. Step 3: Cross multiply
    20,241.76x = 27,933 × 11,289.04
  4. Step 4: Simplify right side
    20,241.76x = 315,336,754.32
  5. Step 5: Solve for x
    x = 315,336,754.32/20,241.76
  6. Step 6: Final answer
    x = 15,578.52

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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.