Home / 22,214.86-30,657.05-12,143.72

Finding the Fourth Proportional to 22,214.86, 30,657.05 and 12,143.72

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Solution

The fourth proportional to 22,214.86, 30,657.05 and 12,143.72 is: 16,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.86 : 30,657.05 = 12,143.72 : x
  2. Step 2: Convert to fraction form
    22,214.86/30,657.05 = 12,143.72/x
  3. Step 3: Cross multiply
    22,214.86x = 30,657.05 × 12,143.72
  4. Step 4: Simplify right side
    22,214.86x = 372,290,692.69
  5. Step 5: Solve for x
    x = 372,290,692.69/22,214.86
  6. Step 6: Final answer
    x = 16,758.64

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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.