Home / 20,922.67-31,347.09-11,040.16

Finding the Fourth Proportional to 20,922.67, 31,347.09 and 11,040.16

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Solution

The fourth proportional to 20,922.67, 31,347.09 and 11,040.16 is: 16,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.67 : 31,347.09 = 11,040.16 : x
  2. Step 2: Convert to fraction form
    20,922.67/31,347.09 = 11,040.16/x
  3. Step 3: Cross multiply
    20,922.67x = 31,347.09 × 11,040.16
  4. Step 4: Simplify right side
    20,922.67x = 346,076,732.40
  5. Step 5: Solve for x
    x = 346,076,732.40/20,922.67
  6. Step 6: Final answer
    x = 16,540.76

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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.