Home / 22,554.82-31,131.90-13,125.20

Finding the Fourth Proportional to 22,554.82, 31,131.90 and 13,125.20

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Solution

The fourth proportional to 22,554.82, 31,131.90 and 13,125.20 is: 18,116.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,554.82 : 31,131.90 = 13,125.20 : x
  2. Step 2: Convert to fraction form
    22,554.82/31,131.90 = 13,125.20/x
  3. Step 3: Cross multiply
    22,554.82x = 31,131.90 × 13,125.20
  4. Step 4: Simplify right side
    22,554.82x = 408,612,413.88
  5. Step 5: Solve for x
    x = 408,612,413.88/22,554.82
  6. Step 6: Final answer
    x = 18,116.41

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Double scale
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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.