Home / 21,012.43-28,996.78-11,452.41

Finding the Fourth Proportional to 21,012.43, 28,996.78 and 11,452.41

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Solution

The fourth proportional to 21,012.43, 28,996.78 and 11,452.41 is: 15,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012.43 : 28,996.78 = 11,452.41 : x
  2. Step 2: Convert to fraction form
    21,012.43/28,996.78 = 11,452.41/x
  3. Step 3: Cross multiply
    21,012.43x = 28,996.78 × 11,452.41
  4. Step 4: Simplify right side
    21,012.43x = 332,083,013.24
  5. Step 5: Solve for x
    x = 332,083,013.24/21,012.43
  6. Step 6: Final answer
    x = 15,804.12

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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.