Home / 22,860.92-31,545.36-12,789.92

Finding the Fourth Proportional to 22,860.92, 31,545.36 and 12,789.92

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Solution

The fourth proportional to 22,860.92, 31,545.36 and 12,789.92 is: 17,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,860.92 : 31,545.36 = 12,789.92 : x
  2. Step 2: Convert to fraction form
    22,860.92/31,545.36 = 12,789.92/x
  3. Step 3: Cross multiply
    22,860.92x = 31,545.36 × 12,789.92
  4. Step 4: Simplify right side
    22,860.92x = 403,462,630.77
  5. Step 5: Solve for x
    x = 403,462,630.77/22,860.92
  6. Step 6: Final answer
    x = 17,648.57

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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.