Home / 22,719.72-31,350.98-13,286.44

Finding the Fourth Proportional to 22,719.72, 31,350.98 and 13,286.44

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Solution

The fourth proportional to 22,719.72, 31,350.98 and 13,286.44 is: 18,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.72 : 31,350.98 = 13,286.44 : x
  2. Step 2: Convert to fraction form
    22,719.72/31,350.98 = 13,286.44/x
  3. Step 3: Cross multiply
    22,719.72x = 31,350.98 × 13,286.44
  4. Step 4: Simplify right side
    22,719.72x = 416,542,914.71
  5. Step 5: Solve for x
    x = 416,542,914.71/22,719.72
  6. Step 6: Final answer
    x = 18,333.98

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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.