Home / 27,819.06-38,369.97-20,267.70

Finding the Fourth Proportional to 27,819.06, 38,369.97 and 20,267.70

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Solution

The fourth proportional to 27,819.06, 38,369.97 and 20,267.70 is: 27,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.06 : 38,369.97 = 20,267.70 : x
  2. Step 2: Convert to fraction form
    27,819.06/38,369.97 = 20,267.70/x
  3. Step 3: Cross multiply
    27,819.06x = 38,369.97 × 20,267.70
  4. Step 4: Simplify right side
    27,819.06x = 777,671,040.97
  5. Step 5: Solve for x
    x = 777,671,040.97/27,819.06
  6. Step 6: Final answer
    x = 27,954.61

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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.