Home / 20,518.20-30,773.10-5,723.40

Finding the Fourth Proportional to 20,518.20, 30,773.10 and 5,723.40

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Solution

The fourth proportional to 20,518.20, 30,773.10 and 5,723.40 is: 8,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.20 : 30,773.10 = 5,723.40 : x
  2. Step 2: Convert to fraction form
    20,518.20/30,773.10 = 5,723.40/x
  3. Step 3: Cross multiply
    20,518.20x = 30,773.10 × 5,723.40
  4. Step 4: Simplify right side
    20,518.20x = 176,126,760.54
  5. Step 5: Solve for x
    x = 176,126,760.54/20,518.20
  6. Step 6: Final answer
    x = 8,583.93

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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.