Home / 28,836.82-39,769.95-18,761.58

Finding the Fourth Proportional to 28,836.82, 39,769.95 and 18,761.58

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Solution

The fourth proportional to 28,836.82, 39,769.95 and 18,761.58 is: 25,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.82 : 39,769.95 = 18,761.58 : x
  2. Step 2: Convert to fraction form
    28,836.82/39,769.95 = 18,761.58/x
  3. Step 3: Cross multiply
    28,836.82x = 39,769.95 × 18,761.58
  4. Step 4: Simplify right side
    28,836.82x = 746,147,098.52
  5. Step 5: Solve for x
    x = 746,147,098.52/28,836.82
  6. Step 6: Final answer
    x = 25,874.81

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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.