Home / 21,167.34-29,212.22-11,735.90

Finding the Fourth Proportional to 21,167.34, 29,212.22 and 11,735.90

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Solution

The fourth proportional to 21,167.34, 29,212.22 and 11,735.90 is: 16,196.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.34 : 29,212.22 = 11,735.90 : x
  2. Step 2: Convert to fraction form
    21,167.34/29,212.22 = 11,735.90/x
  3. Step 3: Cross multiply
    21,167.34x = 29,212.22 × 11,735.90
  4. Step 4: Simplify right side
    21,167.34x = 342,831,692.70
  5. Step 5: Solve for x
    x = 342,831,692.70/21,167.34
  6. Step 6: Final answer
    x = 16,196.26

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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.