Home / 18,845.39-28,231.27-10,500.23

Finding the Fourth Proportional to 18,845.39, 28,231.27 and 10,500.23

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Solution

The fourth proportional to 18,845.39, 28,231.27 and 10,500.23 is: 15,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.39 : 28,231.27 = 10,500.23 : x
  2. Step 2: Convert to fraction form
    18,845.39/28,231.27 = 10,500.23/x
  3. Step 3: Cross multiply
    18,845.39x = 28,231.27 × 10,500.23
  4. Step 4: Simplify right side
    18,845.39x = 296,434,872.52
  5. Step 5: Solve for x
    x = 296,434,872.52/18,845.39
  6. Step 6: Final answer
    x = 15,729.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.