Home / 20,543.37-30,832.54-8,072.12

Finding the Fourth Proportional to 20,543.37, 30,832.54 and 8,072.12

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Solution

The fourth proportional to 20,543.37, 30,832.54 and 8,072.12 is: 12,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.37 : 30,832.54 = 8,072.12 : x
  2. Step 2: Convert to fraction form
    20,543.37/30,832.54 = 8,072.12/x
  3. Step 3: Cross multiply
    20,543.37x = 30,832.54 × 8,072.12
  4. Step 4: Simplify right side
    20,543.37x = 248,883,788.44
  5. Step 5: Solve for x
    x = 248,883,788.44/20,543.37
  6. Step 6: Final answer
    x = 12,115.04

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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.