Home / 21,372.03-29,501.24-12,874.52

Finding the Fourth Proportional to 21,372.03, 29,501.24 and 12,874.52

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Solution

The fourth proportional to 21,372.03, 29,501.24 and 12,874.52 is: 17,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.03 : 29,501.24 = 12,874.52 : x
  2. Step 2: Convert to fraction form
    21,372.03/29,501.24 = 12,874.52/x
  3. Step 3: Cross multiply
    21,372.03x = 29,501.24 × 12,874.52
  4. Step 4: Simplify right side
    21,372.03x = 379,814,304.40
  5. Step 5: Solve for x
    x = 379,814,304.40/21,372.03
  6. Step 6: Final answer
    x = 17,771.56

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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.