Home / 28,669.92-39,563.13-15,923.91

Finding the Fourth Proportional to 28,669.92, 39,563.13 and 15,923.91

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Solution

The fourth proportional to 28,669.92, 39,563.13 and 15,923.91 is: 21,974.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.92 : 39,563.13 = 15,923.91 : x
  2. Step 2: Convert to fraction form
    28,669.92/39,563.13 = 15,923.91/x
  3. Step 3: Cross multiply
    28,669.92x = 39,563.13 × 15,923.91
  4. Step 4: Simplify right side
    28,669.92x = 629,999,721.44
  5. Step 5: Solve for x
    x = 629,999,721.44/28,669.92
  6. Step 6: Final answer
    x = 21,974.24

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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.