Home / 26,049.36-39,078.84-8,520.16

Finding the Fourth Proportional to 26,049.36, 39,078.84 and 8,520.16

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Solution

The fourth proportional to 26,049.36, 39,078.84 and 8,520.16 is: 12,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,049.36 : 39,078.84 = 8,520.16 : x
  2. Step 2: Convert to fraction form
    26,049.36/39,078.84 = 8,520.16/x
  3. Step 3: Cross multiply
    26,049.36x = 39,078.84 × 8,520.16
  4. Step 4: Simplify right side
    26,049.36x = 332,957,969.41
  5. Step 5: Solve for x
    x = 332,957,969.41/26,049.36
  6. Step 6: Final answer
    x = 12,781.81

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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.