Home / 20,606.30-30,911.87-6,561.41

Finding the Fourth Proportional to 20,606.30, 30,911.87 and 6,561.41

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Solution

The fourth proportional to 20,606.30, 30,911.87 and 6,561.41 is: 9,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.30 : 30,911.87 = 6,561.41 : x
  2. Step 2: Convert to fraction form
    20,606.30/30,911.87 = 6,561.41/x
  3. Step 3: Cross multiply
    20,606.30x = 30,911.87 × 6,561.41
  4. Step 4: Simplify right side
    20,606.30x = 202,825,452.94
  5. Step 5: Solve for x
    x = 202,825,452.94/20,606.30
  6. Step 6: Final answer
    x = 9,842.89

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1.5x scale

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.