Home / 33,126.30-45,724.57-20,383.38

Finding the Fourth Proportional to 33,126.30, 45,724.57 and 20,383.38

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Solution

The fourth proportional to 33,126.30, 45,724.57 and 20,383.38 is: 28,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,126.30 : 45,724.57 = 20,383.38 : x
  2. Step 2: Convert to fraction form
    33,126.30/45,724.57 = 20,383.38/x
  3. Step 3: Cross multiply
    33,126.30x = 45,724.57 × 20,383.38
  4. Step 4: Simplify right side
    33,126.30x = 932,021,234.69
  5. Step 5: Solve for x
    x = 932,021,234.69/33,126.30
  6. Step 6: Final answer
    x = 28,135.39

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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.