Home / 39,450.86-54,439.79-21,542.23

Finding the Fourth Proportional to 39,450.86, 54,439.79 and 21,542.23

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Solution

The fourth proportional to 39,450.86, 54,439.79 and 21,542.23 is: 29,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450.86 : 54,439.79 = 21,542.23 : x
  2. Step 2: Convert to fraction form
    39,450.86/54,439.79 = 21,542.23/x
  3. Step 3: Cross multiply
    39,450.86x = 54,439.79 × 21,542.23
  4. Step 4: Simplify right side
    39,450.86x = 1,172,754,477.33
  5. Step 5: Solve for x
    x = 1,172,754,477.33/39,450.86
  6. Step 6: Final answer
    x = 29,726.97

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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.