Home / 39,091.66-53,946.12-21,863.84

Finding the Fourth Proportional to 39,091.66, 53,946.12 and 21,863.84

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Solution

The fourth proportional to 39,091.66, 53,946.12 and 21,863.84 is: 30,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091.66 : 53,946.12 = 21,863.84 : x
  2. Step 2: Convert to fraction form
    39,091.66/53,946.12 = 21,863.84/x
  3. Step 3: Cross multiply
    39,091.66x = 53,946.12 × 21,863.84
  4. Step 4: Simplify right side
    39,091.66x = 1,179,469,329.02
  5. Step 5: Solve for x
    x = 1,179,469,329.02/39,091.66
  6. Step 6: Final answer
    x = 30,171.89

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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.