Home / 20,056.40-30,084.24-8,207.60

Finding the Fourth Proportional to 20,056.40, 30,084.24 and 8,207.60

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Solution

The fourth proportional to 20,056.40, 30,084.24 and 8,207.60 is: 12,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.40 : 30,084.24 = 8,207.60 : x
  2. Step 2: Convert to fraction form
    20,056.40/30,084.24 = 8,207.60/x
  3. Step 3: Cross multiply
    20,056.40x = 30,084.24 × 8,207.60
  4. Step 4: Simplify right side
    20,056.40x = 246,919,408.22
  5. Step 5: Solve for x
    x = 246,919,408.22/20,056.40
  6. Step 6: Final answer
    x = 12,311.25

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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.