Home / 36,819.90-55,254.06-20,191.64

Finding the Fourth Proportional to 36,819.90, 55,254.06 and 20,191.64

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Solution

The fourth proportional to 36,819.90, 55,254.06 and 20,191.64 is: 30,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,819.90 : 55,254.06 = 20,191.64 : x
  2. Step 2: Convert to fraction form
    36,819.90/55,254.06 = 20,191.64/x
  3. Step 3: Cross multiply
    36,819.90x = 55,254.06 × 20,191.64
  4. Step 4: Simplify right side
    36,819.90x = 1,115,669,811.79
  5. Step 5: Solve for x
    x = 1,115,669,811.79/36,819.90
  6. Step 6: Final answer
    x = 30,300.73

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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.