Home / 27,821.51-41,759.60-20,404.85

Finding the Fourth Proportional to 27,821.51, 41,759.60 and 20,404.85

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Solution

The fourth proportional to 27,821.51, 41,759.60 and 20,404.85 is: 30,627.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.51 : 41,759.60 = 20,404.85 : x
  2. Step 2: Convert to fraction form
    27,821.51/41,759.60 = 20,404.85/x
  3. Step 3: Cross multiply
    27,821.51x = 41,759.60 × 20,404.85
  4. Step 4: Simplify right side
    27,821.51x = 852,098,063.24
  5. Step 5: Solve for x
    x = 852,098,063.24/27,821.51
  6. Step 6: Final answer
    x = 30,627.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.