Home / 28,538.92-39,383.84-15,963.68

Finding the Fourth Proportional to 28,538.92, 39,383.84 and 15,963.68

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Solution

The fourth proportional to 28,538.92, 39,383.84 and 15,963.68 is: 22,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.92 : 39,383.84 = 15,963.68 : x
  2. Step 2: Convert to fraction form
    28,538.92/39,383.84 = 15,963.68/x
  3. Step 3: Cross multiply
    28,538.92x = 39,383.84 × 15,963.68
  4. Step 4: Simplify right side
    28,538.92x = 628,711,018.93
  5. Step 5: Solve for x
    x = 628,711,018.93/28,538.92
  6. Step 6: Final answer
    x = 22,029.95

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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.