Home / 22,208.25-30,647.40-12,272.25

Finding the Fourth Proportional to 22,208.25, 30,647.40 and 12,272.25

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Solution

The fourth proportional to 22,208.25, 30,647.40 and 12,272.25 is: 16,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.25 : 30,647.40 = 12,272.25 : x
  2. Step 2: Convert to fraction form
    22,208.25/30,647.40 = 12,272.25/x
  3. Step 3: Cross multiply
    22,208.25x = 30,647.40 × 12,272.25
  4. Step 4: Simplify right side
    22,208.25x = 376,112,554.65
  5. Step 5: Solve for x
    x = 376,112,554.65/22,208.25
  6. Step 6: Final answer
    x = 16,935.71

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Half scale
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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.