Home / 22,861.33-31,531.19-19,679.85

Finding the Fourth Proportional to 22,861.33, 31,531.19 and 19,679.85

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Solution

The fourth proportional to 22,861.33, 31,531.19 and 19,679.85 is: 27,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.33 : 31,531.19 = 19,679.85 : x
  2. Step 2: Convert to fraction form
    22,861.33/31,531.19 = 19,679.85/x
  3. Step 3: Cross multiply
    22,861.33x = 31,531.19 × 19,679.85
  4. Step 4: Simplify right side
    22,861.33x = 620,528,991.12
  5. Step 5: Solve for x
    x = 620,528,991.12/22,861.33
  6. Step 6: Final answer
    x = 27,143.17

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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.