Home / 22,860.25-31,545.65-12,786.95

Finding the Fourth Proportional to 22,860.25, 31,545.65 and 12,786.95

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Solution

The fourth proportional to 22,860.25, 31,545.65 and 12,786.95 is: 17,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,860.25 : 31,545.65 = 12,786.95 : x
  2. Step 2: Convert to fraction form
    22,860.25/31,545.65 = 12,786.95/x
  3. Step 3: Cross multiply
    22,860.25x = 31,545.65 × 12,786.95
  4. Step 4: Simplify right side
    22,860.25x = 403,372,760.10
  5. Step 5: Solve for x
    x = 403,372,760.10/22,860.25
  6. Step 6: Final answer
    x = 17,645.16

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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.