Home / 39,744.69-54,847.42-21,839.28

Finding the Fourth Proportional to 39,744.69, 54,847.42 and 21,839.28

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Solution

The fourth proportional to 39,744.69, 54,847.42 and 21,839.28 is: 30,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,744.69 : 54,847.42 = 21,839.28 : x
  2. Step 2: Convert to fraction form
    39,744.69/54,847.42 = 21,839.28/x
  3. Step 3: Cross multiply
    39,744.69x = 54,847.42 × 21,839.28
  4. Step 4: Simplify right side
    39,744.69x = 1,197,828,162.66
  5. Step 5: Solve for x
    x = 1,197,828,162.66/39,744.69
  6. Step 6: Final answer
    x = 30,138.07

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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.