Home / 28,033.70-38,687.02-15,286.73

Finding the Fourth Proportional to 28,033.70, 38,687.02 and 15,286.73

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Solution

The fourth proportional to 28,033.70, 38,687.02 and 15,286.73 is: 21,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.70 : 38,687.02 = 15,286.73 : x
  2. Step 2: Convert to fraction form
    28,033.70/38,687.02 = 15,286.73/x
  3. Step 3: Cross multiply
    28,033.70x = 38,687.02 × 15,286.73
  4. Step 4: Simplify right side
    28,033.70x = 591,397,797.59
  5. Step 5: Solve for x
    x = 591,397,797.59/28,033.70
  6. Step 6: Final answer
    x = 21,095.96

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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.