Home / 20,104.88-30,157.68-7,630.72

Finding the Fourth Proportional to 20,104.88, 30,157.68 and 7,630.72

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Solution

The fourth proportional to 20,104.88, 30,157.68 and 7,630.72 is: 11,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.88 : 30,157.68 = 7,630.72 : x
  2. Step 2: Convert to fraction form
    20,104.88/30,157.68 = 7,630.72/x
  3. Step 3: Cross multiply
    20,104.88x = 30,157.68 × 7,630.72
  4. Step 4: Simplify right side
    20,104.88x = 230,124,811.93
  5. Step 5: Solve for x
    x = 230,124,811.93/20,104.88
  6. Step 6: Final answer
    x = 11,446.22

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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.