Home / 21,135.44-31,692.90-10,600.94

Finding the Fourth Proportional to 21,135.44, 31,692.90 and 10,600.94

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Solution

The fourth proportional to 21,135.44, 31,692.90 and 10,600.94 is: 15,896.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135.44 : 31,692.90 = 10,600.94 : x
  2. Step 2: Convert to fraction form
    21,135.44/31,692.90 = 10,600.94/x
  3. Step 3: Cross multiply
    21,135.44x = 31,692.90 × 10,600.94
  4. Step 4: Simplify right side
    21,135.44x = 335,974,531.33
  5. Step 5: Solve for x
    x = 335,974,531.33/21,135.44
  6. Step 6: Final answer
    x = 15,896.26

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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.