Home / 22,143.26-30,557.09-12,071.90

Finding the Fourth Proportional to 22,143.26, 30,557.09 and 12,071.90

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Solution

The fourth proportional to 22,143.26, 30,557.09 and 12,071.90 is: 16,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.26 : 30,557.09 = 12,071.90 : x
  2. Step 2: Convert to fraction form
    22,143.26/30,557.09 = 12,071.90/x
  3. Step 3: Cross multiply
    22,143.26x = 30,557.09 × 12,071.90
  4. Step 4: Simplify right side
    22,143.26x = 368,882,134.77
  5. Step 5: Solve for x
    x = 368,882,134.77/22,143.26
  6. Step 6: Final answer
    x = 16,658.89

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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.