Home / 22,857.19-31,545.84-12,786.19

Finding the Fourth Proportional to 22,857.19, 31,545.84 and 12,786.19

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Solution

The fourth proportional to 22,857.19, 31,545.84 and 12,786.19 is: 17,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.19 : 31,545.84 = 12,786.19 : x
  2. Step 2: Convert to fraction form
    22,857.19/31,545.84 = 12,786.19/x
  3. Step 3: Cross multiply
    22,857.19x = 31,545.84 × 12,786.19
  4. Step 4: Simplify right side
    22,857.19x = 403,351,103.95
  5. Step 5: Solve for x
    x = 403,351,103.95/22,857.19
  6. Step 6: Final answer
    x = 17,646.57

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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.