Home / 39,215.75-54,114.89-22,220.33

Finding the Fourth Proportional to 39,215.75, 54,114.89 and 22,220.33

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Solution

The fourth proportional to 39,215.75, 54,114.89 and 22,220.33 is: 30,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,215.75 : 54,114.89 = 22,220.33 : x
  2. Step 2: Convert to fraction form
    39,215.75/54,114.89 = 22,220.33/x
  3. Step 3: Cross multiply
    39,215.75x = 54,114.89 × 22,220.33
  4. Step 4: Simplify right side
    39,215.75x = 1,202,450,332.04
  5. Step 5: Solve for x
    x = 1,202,450,332.04/39,215.75
  6. Step 6: Final answer
    x = 30,662.44

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Half scale
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Double scale
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Similar ratio
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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.