Home / 20,795.27-31,180.41-8,773.11

Finding the Fourth Proportional to 20,795.27, 31,180.41 and 8,773.11

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Solution

The fourth proportional to 20,795.27, 31,180.41 and 8,773.11 is: 13,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.27 : 31,180.41 = 8,773.11 : x
  2. Step 2: Convert to fraction form
    20,795.27/31,180.41 = 8,773.11/x
  3. Step 3: Cross multiply
    20,795.27x = 31,180.41 × 8,773.11
  4. Step 4: Simplify right side
    20,795.27x = 273,549,166.78
  5. Step 5: Solve for x
    x = 273,549,166.78/20,795.27
  6. Step 6: Final answer
    x = 13,154.40

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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.