Home / 20,669.49-31,008.23-8,823.09

Finding the Fourth Proportional to 20,669.49, 31,008.23 and 8,823.09

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Solution

The fourth proportional to 20,669.49, 31,008.23 and 8,823.09 is: 13,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.49 : 31,008.23 = 8,823.09 : x
  2. Step 2: Convert to fraction form
    20,669.49/31,008.23 = 8,823.09/x
  3. Step 3: Cross multiply
    20,669.49x = 31,008.23 × 8,823.09
  4. Step 4: Simplify right side
    20,669.49x = 273,588,404.03
  5. Step 5: Solve for x
    x = 273,588,404.03/20,669.49
  6. Step 6: Final answer
    x = 13,236.34

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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.