Home / 22,215.32-30,657.83-12,143.54

Finding the Fourth Proportional to 22,215.32, 30,657.83 and 12,143.54

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Solution

The fourth proportional to 22,215.32, 30,657.83 and 12,143.54 is: 16,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.32 : 30,657.83 = 12,143.54 : x
  2. Step 2: Convert to fraction form
    22,215.32/30,657.83 = 12,143.54/x
  3. Step 3: Cross multiply
    22,215.32x = 30,657.83 × 12,143.54
  4. Step 4: Simplify right side
    22,215.32x = 372,294,584.92
  5. Step 5: Solve for x
    x = 372,294,584.92/22,215.32
  6. Step 6: Final answer
    x = 16,758.46

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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.