Home / 20,497.27-30,739.96-8,653.67

Finding the Fourth Proportional to 20,497.27, 30,739.96 and 8,653.67

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Solution

The fourth proportional to 20,497.27, 30,739.96 and 8,653.67 is: 12,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.27 : 30,739.96 = 8,653.67 : x
  2. Step 2: Convert to fraction form
    20,497.27/30,739.96 = 8,653.67/x
  3. Step 3: Cross multiply
    20,497.27x = 30,739.96 × 8,653.67
  4. Step 4: Simplify right side
    20,497.27x = 266,013,469.65
  5. Step 5: Solve for x
    x = 266,013,469.65/20,497.27
  6. Step 6: Final answer
    x = 12,978.00

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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.