Home / 36,676.88-55,018.26-11,720.45

Finding the Fourth Proportional to 36,676.88, 55,018.26 and 11,720.45

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Solution

The fourth proportional to 36,676.88, 55,018.26 and 11,720.45 is: 17,581.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,676.88 : 55,018.26 = 11,720.45 : x
  2. Step 2: Convert to fraction form
    36,676.88/55,018.26 = 11,720.45/x
  3. Step 3: Cross multiply
    36,676.88x = 55,018.26 × 11,720.45
  4. Step 4: Simplify right side
    36,676.88x = 644,838,765.42
  5. Step 5: Solve for x
    x = 644,838,765.42/36,676.88
  6. Step 6: Final answer
    x = 17,581.61

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1.5x scale

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.