Home / 20,609.42-30,916.55-6,564.56

Finding the Fourth Proportional to 20,609.42, 30,916.55 and 6,564.56

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Solution

The fourth proportional to 20,609.42, 30,916.55 and 6,564.56 is: 9,847.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.42 : 30,916.55 = 6,564.56 : x
  2. Step 2: Convert to fraction form
    20,609.42/30,916.55 = 6,564.56/x
  3. Step 3: Cross multiply
    20,609.42x = 30,916.55 × 6,564.56
  4. Step 4: Simplify right side
    20,609.42x = 202,953,409.30
  5. Step 5: Solve for x
    x = 202,953,409.30/20,609.42
  6. Step 6: Final answer
    x = 9,847.61

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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.