Home / 33,238.72-45,868.60-18,131.73

Finding the Fourth Proportional to 33,238.72, 45,868.60 and 18,131.73

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Solution

The fourth proportional to 33,238.72, 45,868.60 and 18,131.73 is: 25,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,238.72 : 45,868.60 = 18,131.73 : x
  2. Step 2: Convert to fraction form
    33,238.72/45,868.60 = 18,131.73/x
  3. Step 3: Cross multiply
    33,238.72x = 45,868.60 × 18,131.73
  4. Step 4: Simplify right side
    33,238.72x = 831,676,750.68
  5. Step 5: Solve for x
    x = 831,676,750.68/33,238.72
  6. Step 6: Final answer
    x = 25,021.32

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Double scale
Find fourth proportional to 33,239.72, 45,869.97 and 18,132.73
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.