Home / 39,103.48-53,962.87-21,198.43

Finding the Fourth Proportional to 39,103.48, 53,962.87 and 21,198.43

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Solution

The fourth proportional to 39,103.48, 53,962.87 and 21,198.43 is: 29,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103.48 : 53,962.87 = 21,198.43 : x
  2. Step 2: Convert to fraction form
    39,103.48/53,962.87 = 21,198.43/x
  3. Step 3: Cross multiply
    39,103.48x = 53,962.87 × 21,198.43
  4. Step 4: Simplify right side
    39,103.48x = 1,143,928,122.29
  5. Step 5: Solve for x
    x = 1,143,928,122.29/39,103.48
  6. Step 6: Final answer
    x = 29,253.87

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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.