Home / 39,103.03-53,962.45-21,198.31

Finding the Fourth Proportional to 39,103.03, 53,962.45 and 21,198.31

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Solution

The fourth proportional to 39,103.03, 53,962.45 and 21,198.31 is: 29,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103.03 : 53,962.45 = 21,198.31 : x
  2. Step 2: Convert to fraction form
    39,103.03/53,962.45 = 21,198.31/x
  3. Step 3: Cross multiply
    39,103.03x = 53,962.45 × 21,198.31
  4. Step 4: Simplify right side
    39,103.03x = 1,143,912,743.46
  5. Step 5: Solve for x
    x = 1,143,912,743.46/39,103.03
  6. Step 6: Final answer
    x = 29,253.81

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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.