Home / 19,830.57-27,367.05-11,871.26

Finding the Fourth Proportional to 19,830.57, 27,367.05 and 11,871.26

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Solution

The fourth proportional to 19,830.57, 27,367.05 and 11,871.26 is: 16,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.57 : 27,367.05 = 11,871.26 : x
  2. Step 2: Convert to fraction form
    19,830.57/27,367.05 = 11,871.26/x
  3. Step 3: Cross multiply
    19,830.57x = 27,367.05 × 11,871.26
  4. Step 4: Simplify right side
    19,830.57x = 324,881,365.98
  5. Step 5: Solve for x
    x = 324,881,365.98/19,830.57
  6. Step 6: Final answer
    x = 16,382.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.