Home / 26,315.20-39,438.24-12,468.16

Finding the Fourth Proportional to 26,315.20, 39,438.24 and 12,468.16

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Solution

The fourth proportional to 26,315.20, 39,438.24 and 12,468.16 is: 18,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,315.20 : 39,438.24 = 12,468.16 : x
  2. Step 2: Convert to fraction form
    26,315.20/39,438.24 = 12,468.16/x
  3. Step 3: Cross multiply
    26,315.20x = 39,438.24 × 12,468.16
  4. Step 4: Simplify right side
    26,315.20x = 491,722,286.44
  5. Step 5: Solve for x
    x = 491,722,286.44/26,315.20
  6. Step 6: Final answer
    x = 18,685.87

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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.