Home / 22,050.54-30,429.54-11,978.76

Finding the Fourth Proportional to 22,050.54, 30,429.54 and 11,978.76

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Solution

The fourth proportional to 22,050.54, 30,429.54 and 11,978.76 is: 16,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,050.54 : 30,429.54 = 11,978.76 : x
  2. Step 2: Convert to fraction form
    22,050.54/30,429.54 = 11,978.76/x
  3. Step 3: Cross multiply
    22,050.54x = 30,429.54 × 11,978.76
  4. Step 4: Simplify right side
    22,050.54x = 364,508,156.57
  5. Step 5: Solve for x
    x = 364,508,156.57/22,050.54
  6. Step 6: Final answer
    x = 16,530.58

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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.