Home / 21,988.26-32,938.38-10,861.29

Finding the Fourth Proportional to 21,988.26, 32,938.38 and 10,861.29

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Solution

The fourth proportional to 21,988.26, 32,938.38 and 10,861.29 is: 16,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.26 : 32,938.38 = 10,861.29 : x
  2. Step 2: Convert to fraction form
    21,988.26/32,938.38 = 10,861.29/x
  3. Step 3: Cross multiply
    21,988.26x = 32,938.38 × 10,861.29
  4. Step 4: Simplify right side
    21,988.26x = 357,753,297.31
  5. Step 5: Solve for x
    x = 357,753,297.31/21,988.26
  6. Step 6: Final answer
    x = 16,270.20

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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.