Home / 20,696.85-31,033.93-8,204.22

Finding the Fourth Proportional to 20,696.85, 31,033.93 and 8,204.22

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Solution

The fourth proportional to 20,696.85, 31,033.93 and 8,204.22 is: 12,301.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.85 : 31,033.93 = 8,204.22 : x
  2. Step 2: Convert to fraction form
    20,696.85/31,033.93 = 8,204.22/x
  3. Step 3: Cross multiply
    20,696.85x = 31,033.93 × 8,204.22
  4. Step 4: Simplify right side
    20,696.85x = 254,609,189.18
  5. Step 5: Solve for x
    x = 254,609,189.18/20,696.85
  6. Step 6: Final answer
    x = 12,301.83

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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.