Home / 18,234.38-27,359.81-10,443.20

Finding the Fourth Proportional to 18,234.38, 27,359.81 and 10,443.20

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Solution

The fourth proportional to 18,234.38, 27,359.81 and 10,443.20 is: 15,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.38 : 27,359.81 = 10,443.20 : x
  2. Step 2: Convert to fraction form
    18,234.38/27,359.81 = 10,443.20/x
  3. Step 3: Cross multiply
    18,234.38x = 27,359.81 × 10,443.20
  4. Step 4: Simplify right side
    18,234.38x = 285,723,778.78
  5. Step 5: Solve for x
    x = 285,723,778.78/18,234.38
  6. Step 6: Final answer
    x = 15,669.51

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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.