Home / 19,274.22-28,918.38-13,770.87

Finding the Fourth Proportional to 19,274.22, 28,918.38 and 13,770.87

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Solution

The fourth proportional to 19,274.22, 28,918.38 and 13,770.87 is: 20,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.22 : 28,918.38 = 13,770.87 : x
  2. Step 2: Convert to fraction form
    19,274.22/28,918.38 = 13,770.87/x
  3. Step 3: Cross multiply
    19,274.22x = 28,918.38 × 13,770.87
  4. Step 4: Simplify right side
    19,274.22x = 398,231,251.59
  5. Step 5: Solve for x
    x = 398,231,251.59/19,274.22
  6. Step 6: Final answer
    x = 20,661.34

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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.