Home / 34,268.67-51,418.80-21,112.65

Finding the Fourth Proportional to 34,268.67, 51,418.80 and 21,112.65

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Solution

The fourth proportional to 34,268.67, 51,418.80 and 21,112.65 is: 31,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,268.67 : 51,418.80 = 21,112.65 : x
  2. Step 2: Convert to fraction form
    34,268.67/51,418.80 = 21,112.65/x
  3. Step 3: Cross multiply
    34,268.67x = 51,418.80 × 21,112.65
  4. Step 4: Simplify right side
    34,268.67x = 1,085,587,127.82
  5. Step 5: Solve for x
    x = 1,085,587,127.82/34,268.67
  6. Step 6: Final answer
    x = 31,678.71

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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.