Home / 39,750.22-54,854.19-21,845.23

Finding the Fourth Proportional to 39,750.22, 54,854.19 and 21,845.23

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Solution

The fourth proportional to 39,750.22, 54,854.19 and 21,845.23 is: 30,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.22 : 54,854.19 = 21,845.23 : x
  2. Step 2: Convert to fraction form
    39,750.22/54,854.19 = 21,845.23/x
  3. Step 3: Cross multiply
    39,750.22x = 54,854.19 × 21,845.23
  4. Step 4: Simplify right side
    39,750.22x = 1,198,302,397.01
  5. Step 5: Solve for x
    x = 1,198,302,397.01/39,750.22
  6. Step 6: Final answer
    x = 30,145.81

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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.