Home / 20,732.04-31,091.22-8,255.16

Finding the Fourth Proportional to 20,732.04, 31,091.22 and 8,255.16

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Solution

The fourth proportional to 20,732.04, 31,091.22 and 8,255.16 is: 12,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.04 : 31,091.22 = 8,255.16 : x
  2. Step 2: Convert to fraction form
    20,732.04/31,091.22 = 8,255.16/x
  3. Step 3: Cross multiply
    20,732.04x = 31,091.22 × 8,255.16
  4. Step 4: Simplify right side
    20,732.04x = 256,662,995.70
  5. Step 5: Solve for x
    x = 256,662,995.70/20,732.04
  6. Step 6: Final answer
    x = 12,380.02

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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.