Home / 39,850.89-54,994.22-21,945.74

Finding the Fourth Proportional to 39,850.89, 54,994.22 and 21,945.74

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Solution

The fourth proportional to 39,850.89, 54,994.22 and 21,945.74 is: 30,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,850.89 : 54,994.22 = 21,945.74 : x
  2. Step 2: Convert to fraction form
    39,850.89/54,994.22 = 21,945.74/x
  3. Step 3: Cross multiply
    39,850.89x = 54,994.22 × 21,945.74
  4. Step 4: Simplify right side
    39,850.89x = 1,206,888,674.66
  5. Step 5: Solve for x
    x = 1,206,888,674.66/39,850.89
  6. Step 6: Final answer
    x = 30,285.12

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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.