Home / 20,373.48-30,540.60-11,133

Finding the Fourth Proportional to 20,373.48, 30,540.60 and 11,133

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Solution

The fourth proportional to 20,373.48, 30,540.60 and 11,133 is: 16,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.48 : 30,540.60 = 11,133 : x
  2. Step 2: Convert to fraction form
    20,373.48/30,540.60 = 11,133/x
  3. Step 3: Cross multiply
    20,373.48x = 30,540.60 × 11,133
  4. Step 4: Simplify right side
    20,373.48x = 340,008,499.80
  5. Step 5: Solve for x
    x = 340,008,499.80/20,373.48
  6. Step 6: Final answer
    x = 16,688.78

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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.