Home / 22,214.45-30,656.76-12,143.57

Finding the Fourth Proportional to 22,214.45, 30,656.76 and 12,143.57

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Solution

The fourth proportional to 22,214.45, 30,656.76 and 12,143.57 is: 16,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.45 : 30,656.76 = 12,143.57 : x
  2. Step 2: Convert to fraction form
    22,214.45/30,656.76 = 12,143.57/x
  3. Step 3: Cross multiply
    22,214.45x = 30,656.76 × 12,143.57
  4. Step 4: Simplify right side
    22,214.45x = 372,282,511.03
  5. Step 5: Solve for x
    x = 372,282,511.03/22,214.45
  6. Step 6: Final answer
    x = 16,758.58

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Double scale
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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.