Home / 22,620.54-31,216.42-12,549.18

Finding the Fourth Proportional to 22,620.54, 31,216.42 and 12,549.18

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Solution

The fourth proportional to 22,620.54, 31,216.42 and 12,549.18 is: 17,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.54 : 31,216.42 = 12,549.18 : x
  2. Step 2: Convert to fraction form
    22,620.54/31,216.42 = 12,549.18/x
  3. Step 3: Cross multiply
    22,620.54x = 31,216.42 × 12,549.18
  4. Step 4: Simplify right side
    22,620.54x = 391,740,286.08
  5. Step 5: Solve for x
    x = 391,740,286.08/22,620.54
  6. Step 6: Final answer
    x = 17,317.91

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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.