Home / 27,743.81-38,286.46-15,168.56

Finding the Fourth Proportional to 27,743.81, 38,286.46 and 15,168.56

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Solution

The fourth proportional to 27,743.81, 38,286.46 and 15,168.56 is: 20,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,743.81 : 38,286.46 = 15,168.56 : x
  2. Step 2: Convert to fraction form
    27,743.81/38,286.46 = 15,168.56/x
  3. Step 3: Cross multiply
    27,743.81x = 38,286.46 × 15,168.56
  4. Step 4: Simplify right side
    27,743.81x = 580,750,465.70
  5. Step 5: Solve for x
    x = 580,750,465.70/27,743.81
  6. Step 6: Final answer
    x = 20,932.61

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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.