Home / 20,162.08-30,243.53-7,338.80

Finding the Fourth Proportional to 20,162.08, 30,243.53 and 7,338.80

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Solution

The fourth proportional to 20,162.08, 30,243.53 and 7,338.80 is: 11,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.08 : 30,243.53 = 7,338.80 : x
  2. Step 2: Convert to fraction form
    20,162.08/30,243.53 = 7,338.80/x
  3. Step 3: Cross multiply
    20,162.08x = 30,243.53 × 7,338.80
  4. Step 4: Simplify right side
    20,162.08x = 221,951,311.92
  5. Step 5: Solve for x
    x = 221,951,311.92/20,162.08
  6. Step 6: Final answer
    x = 11,008.35

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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.