Home / 22,214.66-30,656.15-12,143.10

Finding the Fourth Proportional to 22,214.66, 30,656.15 and 12,143.10

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Solution

The fourth proportional to 22,214.66, 30,656.15 and 12,143.10 is: 16,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.66 : 30,656.15 = 12,143.10 : x
  2. Step 2: Convert to fraction form
    22,214.66/30,656.15 = 12,143.10/x
  3. Step 3: Cross multiply
    22,214.66x = 30,656.15 × 12,143.10
  4. Step 4: Simplify right side
    22,214.66x = 372,260,690.71
  5. Step 5: Solve for x
    x = 372,260,690.71/22,214.66
  6. Step 6: Final answer
    x = 16,757.44

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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.