Home / 21,244.38-31,866.03-5,661.96

Finding the Fourth Proportional to 21,244.38, 31,866.03 and 5,661.96

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Solution

The fourth proportional to 21,244.38, 31,866.03 and 5,661.96 is: 8,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.38 : 31,866.03 = 5,661.96 : x
  2. Step 2: Convert to fraction form
    21,244.38/31,866.03 = 5,661.96/x
  3. Step 3: Cross multiply
    21,244.38x = 31,866.03 × 5,661.96
  4. Step 4: Simplify right side
    21,244.38x = 180,424,187.22
  5. Step 5: Solve for x
    x = 180,424,187.22/21,244.38
  6. Step 6: Final answer
    x = 8,492.80

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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.