Home / 27,766.75-38,322.77-21,843.62

Finding the Fourth Proportional to 27,766.75, 38,322.77 and 21,843.62

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Solution

The fourth proportional to 27,766.75, 38,322.77 and 21,843.62 is: 30,147.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,766.75 : 38,322.77 = 21,843.62 : x
  2. Step 2: Convert to fraction form
    27,766.75/38,322.77 = 21,843.62/x
  3. Step 3: Cross multiply
    27,766.75x = 38,322.77 × 21,843.62
  4. Step 4: Simplify right side
    27,766.75x = 837,108,206.54
  5. Step 5: Solve for x
    x = 837,108,206.54/27,766.75
  6. Step 6: Final answer
    x = 30,147.86

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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.