Home / 39,100.43-53,958.63-21,195.42

Finding the Fourth Proportional to 39,100.43, 53,958.63 and 21,195.42

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Solution

The fourth proportional to 39,100.43, 53,958.63 and 21,195.42 is: 29,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,100.43 : 53,958.63 = 21,195.42 : x
  2. Step 2: Convert to fraction form
    39,100.43/53,958.63 = 21,195.42/x
  3. Step 3: Cross multiply
    39,100.43x = 53,958.63 × 21,195.42
  4. Step 4: Simplify right side
    39,100.43x = 1,143,675,825.47
  5. Step 5: Solve for x
    x = 1,143,675,825.47/39,100.43
  6. Step 6: Final answer
    x = 29,249.70

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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.