Home / 20,694.36-28,546.11-15,022.50

Finding the Fourth Proportional to 20,694.36, 28,546.11 and 15,022.50

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Solution

The fourth proportional to 20,694.36, 28,546.11 and 15,022.50 is: 20,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.36 : 28,546.11 = 15,022.50 : x
  2. Step 2: Convert to fraction form
    20,694.36/28,546.11 = 15,022.50/x
  3. Step 3: Cross multiply
    20,694.36x = 28,546.11 × 15,022.50
  4. Step 4: Simplify right side
    20,694.36x = 428,833,937.48
  5. Step 5: Solve for x
    x = 428,833,937.48/20,694.36
  6. Step 6: Final answer
    x = 20,722.26

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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.