Home / 33,138.33-45,732.12-18,993.90

Finding the Fourth Proportional to 33,138.33, 45,732.12 and 18,993.90

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Solution

The fourth proportional to 33,138.33, 45,732.12 and 18,993.90 is: 26,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.33 : 45,732.12 = 18,993.90 : x
  2. Step 2: Convert to fraction form
    33,138.33/45,732.12 = 18,993.90/x
  3. Step 3: Cross multiply
    33,138.33x = 45,732.12 × 18,993.90
  4. Step 4: Simplify right side
    33,138.33x = 868,631,314.07
  5. Step 5: Solve for x
    x = 868,631,314.07/33,138.33
  6. Step 6: Final answer
    x = 26,212.28

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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.