Home / 36,780.72-55,137.64-13,401.84

Finding the Fourth Proportional to 36,780.72, 55,137.64 and 13,401.84

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Solution

The fourth proportional to 36,780.72, 55,137.64 and 13,401.84 is: 20,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,780.72 : 55,137.64 = 13,401.84 : x
  2. Step 2: Convert to fraction form
    36,780.72/55,137.64 = 13,401.84/x
  3. Step 3: Cross multiply
    36,780.72x = 55,137.64 × 13,401.84
  4. Step 4: Simplify right side
    36,780.72x = 738,945,829.26
  5. Step 5: Solve for x
    x = 738,945,829.26/36,780.72
  6. Step 6: Final answer
    x = 20,090.58

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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.