Home / 27,755.28-38,302.95-15,819.73

Finding the Fourth Proportional to 27,755.28, 38,302.95 and 15,819.73

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Solution

The fourth proportional to 27,755.28, 38,302.95 and 15,819.73 is: 21,831.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.28 : 38,302.95 = 15,819.73 : x
  2. Step 2: Convert to fraction form
    27,755.28/38,302.95 = 15,819.73/x
  3. Step 3: Cross multiply
    27,755.28x = 38,302.95 × 15,819.73
  4. Step 4: Simplify right side
    27,755.28x = 605,942,327.20
  5. Step 5: Solve for x
    x = 605,942,327.20/27,755.28
  6. Step 6: Final answer
    x = 21,831.61

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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.