Home / 21,801.23-32,721.29-10,121.03

Finding the Fourth Proportional to 21,801.23, 32,721.29 and 10,121.03

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Solution

The fourth proportional to 21,801.23, 32,721.29 and 10,121.03 is: 15,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801.23 : 32,721.29 = 10,121.03 : x
  2. Step 2: Convert to fraction form
    21,801.23/32,721.29 = 10,121.03/x
  3. Step 3: Cross multiply
    21,801.23x = 32,721.29 × 10,121.03
  4. Step 4: Simplify right side
    21,801.23x = 331,173,157.73
  5. Step 5: Solve for x
    x = 331,173,157.73/21,801.23
  6. Step 6: Final answer
    x = 15,190.57

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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.