Home / 39,468.09-54,469.71-21,565.79

Finding the Fourth Proportional to 39,468.09, 54,469.71 and 21,565.79

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Solution

The fourth proportional to 39,468.09, 54,469.71 and 21,565.79 is: 29,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,468.09 : 54,469.71 = 21,565.79 : x
  2. Step 2: Convert to fraction form
    39,468.09/54,469.71 = 21,565.79/x
  3. Step 3: Cross multiply
    39,468.09x = 54,469.71 × 21,565.79
  4. Step 4: Simplify right side
    39,468.09x = 1,174,682,054.87
  5. Step 5: Solve for x
    x = 1,174,682,054.87/39,468.09
  6. Step 6: Final answer
    x = 29,762.83

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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.