Home / 26,789.20-40,174.48-10,989.68

Finding the Fourth Proportional to 26,789.20, 40,174.48 and 10,989.68

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Solution

The fourth proportional to 26,789.20, 40,174.48 and 10,989.68 is: 16,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,789.20 : 40,174.48 = 10,989.68 : x
  2. Step 2: Convert to fraction form
    26,789.20/40,174.48 = 10,989.68/x
  3. Step 3: Cross multiply
    26,789.20x = 40,174.48 × 10,989.68
  4. Step 4: Simplify right side
    26,789.20x = 441,504,679.37
  5. Step 5: Solve for x
    x = 441,504,679.37/26,789.20
  6. Step 6: Final answer
    x = 16,480.70

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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.