Home / 22,214.94-30,656.54-12,143.39

Finding the Fourth Proportional to 22,214.94, 30,656.54 and 12,143.39

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Solution

The fourth proportional to 22,214.94, 30,656.54 and 12,143.39 is: 16,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.94 : 30,656.54 = 12,143.39 : x
  2. Step 2: Convert to fraction form
    22,214.94/30,656.54 = 12,143.39/x
  3. Step 3: Cross multiply
    22,214.94x = 30,656.54 × 12,143.39
  4. Step 4: Simplify right side
    22,214.94x = 372,274,130.04
  5. Step 5: Solve for x
    x = 372,274,130.04/22,214.94
  6. Step 6: Final answer
    x = 16,757.83

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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.