Home / 20,897.53-31,351.48-10,372.49

Finding the Fourth Proportional to 20,897.53, 31,351.48 and 10,372.49

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Solution

The fourth proportional to 20,897.53, 31,351.48 and 10,372.49 is: 15,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.53 : 31,351.48 = 10,372.49 : x
  2. Step 2: Convert to fraction form
    20,897.53/31,351.48 = 10,372.49/x
  3. Step 3: Cross multiply
    20,897.53x = 31,351.48 × 10,372.49
  4. Step 4: Simplify right side
    20,897.53x = 325,192,912.79
  5. Step 5: Solve for x
    x = 325,192,912.79/20,897.53
  6. Step 6: Final answer
    x = 15,561.31

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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.