Home / 39,850.37-54,993.90-21,945.93

Finding the Fourth Proportional to 39,850.37, 54,993.90 and 21,945.93

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Solution

The fourth proportional to 39,850.37, 54,993.90 and 21,945.93 is: 30,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,850.37 : 54,993.90 = 21,945.93 : x
  2. Step 2: Convert to fraction form
    39,850.37/54,993.90 = 21,945.93/x
  3. Step 3: Cross multiply
    39,850.37x = 54,993.90 × 21,945.93
  4. Step 4: Simplify right side
    39,850.37x = 1,206,892,279.83
  5. Step 5: Solve for x
    x = 1,206,892,279.83/39,850.37
  6. Step 6: Final answer
    x = 30,285.60

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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.