Home / 20,433.05-28,196.82-11,480.93

Finding the Fourth Proportional to 20,433.05, 28,196.82 and 11,480.93

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Solution

The fourth proportional to 20,433.05, 28,196.82 and 11,480.93 is: 15,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.05 : 28,196.82 = 11,480.93 : x
  2. Step 2: Convert to fraction form
    20,433.05/28,196.82 = 11,480.93/x
  3. Step 3: Cross multiply
    20,433.05x = 28,196.82 × 11,480.93
  4. Step 4: Simplify right side
    20,433.05x = 323,725,716.64
  5. Step 5: Solve for x
    x = 323,725,716.64/20,433.05
  6. Step 6: Final answer
    x = 15,843.24

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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.