Home / 18,433.38-25,438-10,049.88

Finding the Fourth Proportional to 18,433.38, 25,438 and 10,049.88

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Solution

The fourth proportional to 18,433.38, 25,438 and 10,049.88 is: 13,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.38 : 25,438 = 10,049.88 : x
  2. Step 2: Convert to fraction form
    18,433.38/25,438 = 10,049.88/x
  3. Step 3: Cross multiply
    18,433.38x = 25,438 × 10,049.88
  4. Step 4: Simplify right side
    18,433.38x = 255,648,847.44
  5. Step 5: Solve for x
    x = 255,648,847.44/18,433.38
  6. Step 6: Final answer
    x = 13,868.80

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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.