Home / 20,401.48-30,602.38-11,162.44

Finding the Fourth Proportional to 20,401.48, 30,602.38 and 11,162.44

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Solution

The fourth proportional to 20,401.48, 30,602.38 and 11,162.44 is: 16,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.48 : 30,602.38 = 11,162.44 : x
  2. Step 2: Convert to fraction form
    20,401.48/30,602.38 = 11,162.44/x
  3. Step 3: Cross multiply
    20,401.48x = 30,602.38 × 11,162.44
  4. Step 4: Simplify right side
    20,401.48x = 341,597,230.61
  5. Step 5: Solve for x
    x = 341,597,230.61/20,401.48
  6. Step 6: Final answer
    x = 16,743.75

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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.