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Finding the Fourth Proportional to 20,395.96, 30,596.98 and 6,357.30

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Solution

The fourth proportional to 20,395.96, 30,596.98 and 6,357.30 is: 9,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.96 : 30,596.98 = 6,357.30 : x
  2. Step 2: Convert to fraction form
    20,395.96/30,596.98 = 6,357.30/x
  3. Step 3: Cross multiply
    20,395.96x = 30,596.98 × 6,357.30
  4. Step 4: Simplify right side
    20,395.96x = 194,514,180.95
  5. Step 5: Solve for x
    x = 194,514,180.95/20,395.96
  6. Step 6: Final answer
    x = 9,536.90

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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.