Home / 22,143.08-30,556.73-12,071.36

Finding the Fourth Proportional to 22,143.08, 30,556.73 and 12,071.36

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Solution

The fourth proportional to 22,143.08, 30,556.73 and 12,071.36 is: 16,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.08 : 30,556.73 = 12,071.36 : x
  2. Step 2: Convert to fraction form
    22,143.08/30,556.73 = 12,071.36/x
  3. Step 3: Cross multiply
    22,143.08x = 30,556.73 × 12,071.36
  4. Step 4: Simplify right side
    22,143.08x = 368,861,288.25
  5. Step 5: Solve for x
    x = 368,861,288.25/22,143.08
  6. Step 6: Final answer
    x = 16,658.08

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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.