Home / 21,114.09-31,669.29-6,326.33

Finding the Fourth Proportional to 21,114.09, 31,669.29 and 6,326.33

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Solution

The fourth proportional to 21,114.09, 31,669.29 and 6,326.33 is: 9,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,114.09 : 31,669.29 = 6,326.33 : x
  2. Step 2: Convert to fraction form
    21,114.09/31,669.29 = 6,326.33/x
  3. Step 3: Cross multiply
    21,114.09x = 31,669.29 × 6,326.33
  4. Step 4: Simplify right side
    21,114.09x = 200,350,221.06
  5. Step 5: Solve for x
    x = 200,350,221.06/21,114.09
  6. Step 6: Final answer
    x = 9,488.93

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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.