Home / 20,446.75-30,670.08-6,407.85

Finding the Fourth Proportional to 20,446.75, 30,670.08 and 6,407.85

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Solution

The fourth proportional to 20,446.75, 30,670.08 and 6,407.85 is: 9,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.75 : 30,670.08 = 6,407.85 : x
  2. Step 2: Convert to fraction form
    20,446.75/30,670.08 = 6,407.85/x
  3. Step 3: Cross multiply
    20,446.75x = 30,670.08 × 6,407.85
  4. Step 4: Simplify right side
    20,446.75x = 196,529,240.09
  5. Step 5: Solve for x
    x = 196,529,240.09/20,446.75
  6. Step 6: Final answer
    x = 9,611.76

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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.