Home / 39,101.73-53,960.45-21,196.68

Finding the Fourth Proportional to 39,101.73, 53,960.45 and 21,196.68

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Solution

The fourth proportional to 39,101.73, 53,960.45 and 21,196.68 is: 29,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.73 : 53,960.45 = 21,196.68 : x
  2. Step 2: Convert to fraction form
    39,101.73/53,960.45 = 21,196.68/x
  3. Step 3: Cross multiply
    39,101.73x = 53,960.45 × 21,196.68
  4. Step 4: Simplify right side
    39,101.73x = 1,143,782,391.31
  5. Step 5: Solve for x
    x = 1,143,782,391.31/39,101.73
  6. Step 6: Final answer
    x = 29,251.45

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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.