Home / 28,828.62-39,801.66-22,101.78

Finding the Fourth Proportional to 28,828.62, 39,801.66 and 22,101.78

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Solution

The fourth proportional to 28,828.62, 39,801.66 and 22,101.78 is: 30,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.62 : 39,801.66 = 22,101.78 : x
  2. Step 2: Convert to fraction form
    28,828.62/39,801.66 = 22,101.78/x
  3. Step 3: Cross multiply
    28,828.62x = 39,801.66 × 22,101.78
  4. Step 4: Simplify right side
    28,828.62x = 879,687,532.95
  5. Step 5: Solve for x
    x = 879,687,532.95/28,828.62
  6. Step 6: Final answer
    x = 30,514.38

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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.