Home / 22,180.76-30,609.24-12,109.11

Finding the Fourth Proportional to 22,180.76, 30,609.24 and 12,109.11

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Solution

The fourth proportional to 22,180.76, 30,609.24 and 12,109.11 is: 16,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.76 : 30,609.24 = 12,109.11 : x
  2. Step 2: Convert to fraction form
    22,180.76/30,609.24 = 12,109.11/x
  3. Step 3: Cross multiply
    22,180.76x = 30,609.24 × 12,109.11
  4. Step 4: Simplify right side
    22,180.76x = 370,650,654.18
  5. Step 5: Solve for x
    x = 370,650,654.18/22,180.76
  6. Step 6: Final answer
    x = 16,710.46

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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.