Home / 20,408.21-30,611.23-6,366.62

Finding the Fourth Proportional to 20,408.21, 30,611.23 and 6,366.62

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Solution

The fourth proportional to 20,408.21, 30,611.23 and 6,366.62 is: 9,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.21 : 30,611.23 = 6,366.62 : x
  2. Step 2: Convert to fraction form
    20,408.21/30,611.23 = 6,366.62/x
  3. Step 3: Cross multiply
    20,408.21x = 30,611.23 × 6,366.62
  4. Step 4: Simplify right side
    20,408.21x = 194,890,113.84
  5. Step 5: Solve for x
    x = 194,890,113.84/20,408.21
  6. Step 6: Final answer
    x = 9,549.60

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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.