Home / 27,817.06-38,367.21-20,265.70

Finding the Fourth Proportional to 27,817.06, 38,367.21 and 20,265.70

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Solution

The fourth proportional to 27,817.06, 38,367.21 and 20,265.70 is: 27,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.06 : 38,367.21 = 20,265.70 : x
  2. Step 2: Convert to fraction form
    27,817.06/38,367.21 = 20,265.70/x
  3. Step 3: Cross multiply
    27,817.06x = 38,367.21 × 20,265.70
  4. Step 4: Simplify right side
    27,817.06x = 777,538,367.70
  5. Step 5: Solve for x
    x = 777,538,367.70/27,817.06
  6. Step 6: Final answer
    x = 27,951.85

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Double scale
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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.