Home / 20,272.15-30,381.86-8,250.30

Finding the Fourth Proportional to 20,272.15, 30,381.86 and 8,250.30

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Solution

The fourth proportional to 20,272.15, 30,381.86 and 8,250.30 is: 12,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.15 : 30,381.86 = 8,250.30 : x
  2. Step 2: Convert to fraction form
    20,272.15/30,381.86 = 8,250.30/x
  3. Step 3: Cross multiply
    20,272.15x = 30,381.86 × 8,250.30
  4. Step 4: Simplify right side
    20,272.15x = 250,659,459.56
  5. Step 5: Solve for x
    x = 250,659,459.56/20,272.15
  6. Step 6: Final answer
    x = 12,364.72

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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.