Home / 39,850.46-54,994.32-21,945.07

Finding the Fourth Proportional to 39,850.46, 54,994.32 and 21,945.07

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Solution

The fourth proportional to 39,850.46, 54,994.32 and 21,945.07 is: 30,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,850.46 : 54,994.32 = 21,945.07 : x
  2. Step 2: Convert to fraction form
    39,850.46/54,994.32 = 21,945.07/x
  3. Step 3: Cross multiply
    39,850.46x = 54,994.32 × 21,945.07
  4. Step 4: Simplify right side
    39,850.46x = 1,206,854,202.00
  5. Step 5: Solve for x
    x = 1,206,854,202.00/39,850.46
  6. Step 6: Final answer
    x = 30,284.57

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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.