Home / 22,031.85-30,404.19-11,960.39

Finding the Fourth Proportional to 22,031.85, 30,404.19 and 11,960.39

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Solution

The fourth proportional to 22,031.85, 30,404.19 and 11,960.39 is: 16,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.85 : 30,404.19 = 11,960.39 : x
  2. Step 2: Convert to fraction form
    22,031.85/30,404.19 = 11,960.39/x
  3. Step 3: Cross multiply
    22,031.85x = 30,404.19 × 11,960.39
  4. Step 4: Simplify right side
    22,031.85x = 363,645,818.01
  5. Step 5: Solve for x
    x = 363,645,818.01/22,031.85
  6. Step 6: Final answer
    x = 16,505.46

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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.