Home / 39,749.15-54,851.18-21,843.77

Finding the Fourth Proportional to 39,749.15, 54,851.18 and 21,843.77

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Solution

The fourth proportional to 39,749.15, 54,851.18 and 21,843.77 is: 30,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.15 : 54,851.18 = 21,843.77 : x
  2. Step 2: Convert to fraction form
    39,749.15/54,851.18 = 21,843.77/x
  3. Step 3: Cross multiply
    39,749.15x = 54,851.18 × 21,843.77
  4. Step 4: Simplify right side
    39,749.15x = 1,198,156,450.93
  5. Step 5: Solve for x
    x = 1,198,156,450.93/39,749.15
  6. Step 6: Final answer
    x = 30,142.95

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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.