Home / 26,141.81-39,190.82-18,221.09

Finding the Fourth Proportional to 26,141.81, 39,190.82 and 18,221.09

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Solution

The fourth proportional to 26,141.81, 39,190.82 and 18,221.09 is: 27,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,141.81 : 39,190.82 = 18,221.09 : x
  2. Step 2: Convert to fraction form
    26,141.81/39,190.82 = 18,221.09/x
  3. Step 3: Cross multiply
    26,141.81x = 39,190.82 × 18,221.09
  4. Step 4: Simplify right side
    26,141.81x = 714,099,171.33
  5. Step 5: Solve for x
    x = 714,099,171.33/26,141.81
  6. Step 6: Final answer
    x = 27,316.37

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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.