Home / 21,343.13-32,014.67-11,861.48

Finding the Fourth Proportional to 21,343.13, 32,014.67 and 11,861.48

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Solution

The fourth proportional to 21,343.13, 32,014.67 and 11,861.48 is: 17,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.13 : 32,014.67 = 11,861.48 : x
  2. Step 2: Convert to fraction form
    21,343.13/32,014.67 = 11,861.48/x
  3. Step 3: Cross multiply
    21,343.13x = 32,014.67 × 11,861.48
  4. Step 4: Simplify right side
    21,343.13x = 379,741,148.53
  5. Step 5: Solve for x
    x = 379,741,148.53/21,343.13
  6. Step 6: Final answer
    x = 17,792.20

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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.