Home / 36,351.91-54,536.04-12,660.55

Finding the Fourth Proportional to 36,351.91, 54,536.04 and 12,660.55

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Solution

The fourth proportional to 36,351.91, 54,536.04 and 12,660.55 is: 18,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,351.91 : 54,536.04 = 12,660.55 : x
  2. Step 2: Convert to fraction form
    36,351.91/54,536.04 = 12,660.55/x
  3. Step 3: Cross multiply
    36,351.91x = 54,536.04 × 12,660.55
  4. Step 4: Simplify right side
    36,351.91x = 690,456,261.22
  5. Step 5: Solve for x
    x = 690,456,261.22/36,351.91
  6. Step 6: Final answer
    x = 18,993.67

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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.