Home / 26,103.68-39,115.20-12,236.48

Finding the Fourth Proportional to 26,103.68, 39,115.20 and 12,236.48

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Solution

The fourth proportional to 26,103.68, 39,115.20 and 12,236.48 is: 18,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,103.68 : 39,115.20 = 12,236.48 : x
  2. Step 2: Convert to fraction form
    26,103.68/39,115.20 = 12,236.48/x
  3. Step 3: Cross multiply
    26,103.68x = 39,115.20 × 12,236.48
  4. Step 4: Simplify right side
    26,103.68x = 478,632,362.50
  5. Step 5: Solve for x
    x = 478,632,362.50/26,103.68
  6. Step 6: Final answer
    x = 18,335.82

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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.