Home / 27,620.94-38,103.84-18,671.58

Finding the Fourth Proportional to 27,620.94, 38,103.84 and 18,671.58

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Solution

The fourth proportional to 27,620.94, 38,103.84 and 18,671.58 is: 25,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.94 : 38,103.84 = 18,671.58 : x
  2. Step 2: Convert to fraction form
    27,620.94/38,103.84 = 18,671.58/x
  3. Step 3: Cross multiply
    27,620.94x = 38,103.84 × 18,671.58
  4. Step 4: Simplify right side
    27,620.94x = 711,458,896.87
  5. Step 5: Solve for x
    x = 711,458,896.87/27,620.94
  6. Step 6: Final answer
    x = 25,757.95

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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.