Home / 20,563.38-30,845.00-8,074.67

Finding the Fourth Proportional to 20,563.38, 30,845.00 and 8,074.67

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Solution

The fourth proportional to 20,563.38, 30,845.00 and 8,074.67 is: 12,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.38 : 30,845.00 = 8,074.67 : x
  2. Step 2: Convert to fraction form
    20,563.38/30,845.00 = 8,074.67/x
  3. Step 3: Cross multiply
    20,563.38x = 30,845.00 × 8,074.67
  4. Step 4: Simplify right side
    20,563.38x = 249,063,062.11
  5. Step 5: Solve for x
    x = 249,063,062.11/20,563.38
  6. Step 6: Final answer
    x = 12,111.97

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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.