Home / 39,749.03-54,855.12-21,843.88

Finding the Fourth Proportional to 39,749.03, 54,855.12 and 21,843.88

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Solution

The fourth proportional to 39,749.03, 54,855.12 and 21,843.88 is: 30,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.03 : 54,855.12 = 21,843.88 : x
  2. Step 2: Convert to fraction form
    39,749.03/54,855.12 = 21,843.88/x
  3. Step 3: Cross multiply
    39,749.03x = 54,855.12 × 21,843.88
  4. Step 4: Simplify right side
    39,749.03x = 1,198,248,603.44
  5. Step 5: Solve for x
    x = 1,198,248,603.44/39,749.03
  6. Step 6: Final answer
    x = 30,145.36

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1.5x scale

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.