Home / 22,578.92-31,161.82-13,631.48

Finding the Fourth Proportional to 22,578.92, 31,161.82 and 13,631.48

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Solution

The fourth proportional to 22,578.92, 31,161.82 and 13,631.48 is: 18,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.92 : 31,161.82 = 13,631.48 : x
  2. Step 2: Convert to fraction form
    22,578.92/31,161.82 = 13,631.48/x
  3. Step 3: Cross multiply
    22,578.92x = 31,161.82 × 13,631.48
  4. Step 4: Simplify right side
    22,578.92x = 424,781,726.09
  5. Step 5: Solve for x
    x = 424,781,726.09/22,578.92
  6. Step 6: Final answer
    x = 18,813.20

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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.