Home / 36,418.88-54,615.09-12,719.78

Finding the Fourth Proportional to 36,418.88, 54,615.09 and 12,719.78

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Solution

The fourth proportional to 36,418.88, 54,615.09 and 12,719.78 is: 19,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,418.88 : 54,615.09 = 12,719.78 : x
  2. Step 2: Convert to fraction form
    36,418.88/54,615.09 = 12,719.78/x
  3. Step 3: Cross multiply
    36,418.88x = 54,615.09 × 12,719.78
  4. Step 4: Simplify right side
    36,418.88x = 694,691,656.40
  5. Step 5: Solve for x
    x = 694,691,656.40/36,418.88
  6. Step 6: Final answer
    x = 19,075.04

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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.