Home / 39,530.78-54,552.03-21,625.58

Finding the Fourth Proportional to 39,530.78, 54,552.03 and 21,625.58

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Solution

The fourth proportional to 39,530.78, 54,552.03 and 21,625.58 is: 29,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,530.78 : 54,552.03 = 21,625.58 : x
  2. Step 2: Convert to fraction form
    39,530.78/54,552.03 = 21,625.58/x
  3. Step 3: Cross multiply
    39,530.78x = 54,552.03 × 21,625.58
  4. Step 4: Simplify right side
    39,530.78x = 1,179,719,465.86
  5. Step 5: Solve for x
    x = 1,179,719,465.86/39,530.78
  6. Step 6: Final answer
    x = 29,843.06

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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.