Home / 39,684.20-54,763.97-21,534.53

Finding the Fourth Proportional to 39,684.20, 54,763.97 and 21,534.53

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Solution

The fourth proportional to 39,684.20, 54,763.97 and 21,534.53 is: 29,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,684.20 : 54,763.97 = 21,534.53 : x
  2. Step 2: Convert to fraction form
    39,684.20/54,763.97 = 21,534.53/x
  3. Step 3: Cross multiply
    39,684.20x = 54,763.97 × 21,534.53
  4. Step 4: Simplify right side
    39,684.20x = 1,179,315,973.39
  5. Step 5: Solve for x
    x = 1,179,315,973.39/39,684.20
  6. Step 6: Final answer
    x = 29,717.52

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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.