Home / 39,478.07-54,480.45-21,573.83

Finding the Fourth Proportional to 39,478.07, 54,480.45 and 21,573.83

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Solution

The fourth proportional to 39,478.07, 54,480.45 and 21,573.83 is: 29,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.07 : 54,480.45 = 21,573.83 : x
  2. Step 2: Convert to fraction form
    39,478.07/54,480.45 = 21,573.83/x
  3. Step 3: Cross multiply
    39,478.07x = 54,480.45 × 21,573.83
  4. Step 4: Simplify right side
    39,478.07x = 1,175,351,694.22
  5. Step 5: Solve for x
    x = 1,175,351,694.22/39,478.07
  6. Step 6: Final answer
    x = 29,772.27

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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.