Home / 39,855.27-54,999.60-21,951.94

Finding the Fourth Proportional to 39,855.27, 54,999.60 and 21,951.94

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Solution

The fourth proportional to 39,855.27, 54,999.60 and 21,951.94 is: 30,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855.27 : 54,999.60 = 21,951.94 : x
  2. Step 2: Convert to fraction form
    39,855.27/54,999.60 = 21,951.94/x
  3. Step 3: Cross multiply
    39,855.27x = 54,999.60 × 21,951.94
  4. Step 4: Simplify right side
    39,855.27x = 1,207,347,919.22
  5. Step 5: Solve for x
    x = 1,207,347,919.22/39,855.27
  6. Step 6: Final answer
    x = 30,293.31

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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.