Home / 39,794.68-54,918.06-21,891.04

Finding the Fourth Proportional to 39,794.68, 54,918.06 and 21,891.04

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Solution

The fourth proportional to 39,794.68, 54,918.06 and 21,891.04 is: 30,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.68 : 54,918.06 = 21,891.04 : x
  2. Step 2: Convert to fraction form
    39,794.68/54,918.06 = 21,891.04/x
  3. Step 3: Cross multiply
    39,794.68x = 54,918.06 × 21,891.04
  4. Step 4: Simplify right side
    39,794.68x = 1,202,213,448.18
  5. Step 5: Solve for x
    x = 1,202,213,448.18/39,794.68
  6. Step 6: Final answer
    x = 30,210.41

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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.