Home / 22,857.44-31,544.82-12,786.80

Finding the Fourth Proportional to 22,857.44, 31,544.82 and 12,786.80

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Solution

The fourth proportional to 22,857.44, 31,544.82 and 12,786.80 is: 17,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.44 : 31,544.82 = 12,786.80 : x
  2. Step 2: Convert to fraction form
    22,857.44/31,544.82 = 12,786.80/x
  3. Step 3: Cross multiply
    22,857.44x = 31,544.82 × 12,786.80
  4. Step 4: Simplify right side
    22,857.44x = 403,357,146.65
  5. Step 5: Solve for x
    x = 403,357,146.65/22,857.44
  6. Step 6: Final answer
    x = 17,646.65

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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.