Home / 21,861.84-32,792.76-6,279.48

Finding the Fourth Proportional to 21,861.84, 32,792.76 and 6,279.48

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Solution

The fourth proportional to 21,861.84, 32,792.76 and 6,279.48 is: 9,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.84 : 32,792.76 = 6,279.48 : x
  2. Step 2: Convert to fraction form
    21,861.84/32,792.76 = 6,279.48/x
  3. Step 3: Cross multiply
    21,861.84x = 32,792.76 × 6,279.48
  4. Step 4: Simplify right side
    21,861.84x = 205,921,480.56
  5. Step 5: Solve for x
    x = 205,921,480.56/21,861.84
  6. Step 6: Final answer
    x = 9,419.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.