Home / 26,019.78-39,035.85-8,489.64

Finding the Fourth Proportional to 26,019.78, 39,035.85 and 8,489.64

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Solution

The fourth proportional to 26,019.78, 39,035.85 and 8,489.64 is: 12,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,019.78 : 39,035.85 = 8,489.64 : x
  2. Step 2: Convert to fraction form
    26,019.78/39,035.85 = 8,489.64/x
  3. Step 3: Cross multiply
    26,019.78x = 39,035.85 × 8,489.64
  4. Step 4: Simplify right side
    26,019.78x = 331,400,313.59
  5. Step 5: Solve for x
    x = 331,400,313.59/26,019.78
  6. Step 6: Final answer
    x = 12,736.48

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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.