Home / 20,195.90-30,297.32-7,717.04

Finding the Fourth Proportional to 20,195.90, 30,297.32 and 7,717.04

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Solution

The fourth proportional to 20,195.90, 30,297.32 and 7,717.04 is: 11,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.90 : 30,297.32 = 7,717.04 : x
  2. Step 2: Convert to fraction form
    20,195.90/30,297.32 = 7,717.04/x
  3. Step 3: Cross multiply
    20,195.90x = 30,297.32 × 7,717.04
  4. Step 4: Simplify right side
    20,195.90x = 233,805,630.33
  5. Step 5: Solve for x
    x = 233,805,630.33/20,195.90
  6. Step 6: Final answer
    x = 11,576.89

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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.