Home / 28,335.97-39,102.83-15,414.84

Finding the Fourth Proportional to 28,335.97, 39,102.83 and 15,414.84

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Solution

The fourth proportional to 28,335.97, 39,102.83 and 15,414.84 is: 21,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.97 : 39,102.83 = 15,414.84 : x
  2. Step 2: Convert to fraction form
    28,335.97/39,102.83 = 15,414.84/x
  3. Step 3: Cross multiply
    28,335.97x = 39,102.83 × 15,414.84
  4. Step 4: Simplify right side
    28,335.97x = 602,763,848.73
  5. Step 5: Solve for x
    x = 602,763,848.73/28,335.97
  6. Step 6: Final answer
    x = 21,272.04

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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.