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Finding the Fourth Proportional to 39,754.75, 54,859.23 and 21,849.77

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Solution

The fourth proportional to 39,754.75, 54,859.23 and 21,849.77 is: 30,151.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.75 : 54,859.23 = 21,849.77 : x
  2. Step 2: Convert to fraction form
    39,754.75/54,859.23 = 21,849.77/x
  3. Step 3: Cross multiply
    39,754.75x = 54,859.23 × 21,849.77
  4. Step 4: Simplify right side
    39,754.75x = 1,198,661,776.96
  5. Step 5: Solve for x
    x = 1,198,661,776.96/39,754.75
  6. Step 6: Final answer
    x = 30,151.41

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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.