Home / 39,209.76-54,105.60-22,212.72

Finding the Fourth Proportional to 39,209.76, 54,105.60 and 22,212.72

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Solution

The fourth proportional to 39,209.76, 54,105.60 and 22,212.72 is: 30,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,209.76 : 54,105.60 = 22,212.72 : x
  2. Step 2: Convert to fraction form
    39,209.76/54,105.60 = 22,212.72/x
  3. Step 3: Cross multiply
    39,209.76x = 54,105.60 × 22,212.72
  4. Step 4: Simplify right side
    39,209.76x = 1,201,832,543.23
  5. Step 5: Solve for x
    x = 1,201,832,543.23/39,209.76
  6. Step 6: Final answer
    x = 30,651.36

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Half scale
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Double scale
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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.