Home / 27,872.12-41,806.56-20,383.32

Finding the Fourth Proportional to 27,872.12, 41,806.56 and 20,383.32

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Solution

The fourth proportional to 27,872.12, 41,806.56 and 20,383.32 is: 30,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.12 : 41,806.56 = 20,383.32 : x
  2. Step 2: Convert to fraction form
    27,872.12/41,806.56 = 20,383.32/x
  3. Step 3: Cross multiply
    27,872.12x = 41,806.56 × 20,383.32
  4. Step 4: Simplify right side
    27,872.12x = 852,156,490.58
  5. Step 5: Solve for x
    x = 852,156,490.58/27,872.12
  6. Step 6: Final answer
    x = 30,573.80

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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.