Home / 28,227.17-38,954.84-16,128.60

Finding the Fourth Proportional to 28,227.17, 38,954.84 and 16,128.60

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Solution

The fourth proportional to 28,227.17, 38,954.84 and 16,128.60 is: 22,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.17 : 38,954.84 = 16,128.60 : x
  2. Step 2: Convert to fraction form
    28,227.17/38,954.84 = 16,128.60/x
  3. Step 3: Cross multiply
    28,227.17x = 38,954.84 × 16,128.60
  4. Step 4: Simplify right side
    28,227.17x = 628,286,951.78
  5. Step 5: Solve for x
    x = 628,286,951.78/28,227.17
  6. Step 6: Final answer
    x = 22,258.24

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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.