Home / 20,456.47-30,635.49-11,664.73

Finding the Fourth Proportional to 20,456.47, 30,635.49 and 11,664.73

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Solution

The fourth proportional to 20,456.47, 30,635.49 and 11,664.73 is: 17,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.47 : 30,635.49 = 11,664.73 : x
  2. Step 2: Convert to fraction form
    20,456.47/30,635.49 = 11,664.73/x
  3. Step 3: Cross multiply
    20,456.47x = 30,635.49 × 11,664.73
  4. Step 4: Simplify right side
    20,456.47x = 357,354,719.27
  5. Step 5: Solve for x
    x = 357,354,719.27/20,456.47
  6. Step 6: Final answer
    x = 17,469.03

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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.