Home / 20,107.05-30,126.39-13,076.33

Finding the Fourth Proportional to 20,107.05, 30,126.39 and 13,076.33

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Solution

The fourth proportional to 20,107.05, 30,126.39 and 13,076.33 is: 19,592.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.05 : 30,126.39 = 13,076.33 : x
  2. Step 2: Convert to fraction form
    20,107.05/30,126.39 = 13,076.33/x
  3. Step 3: Cross multiply
    20,107.05x = 30,126.39 × 13,076.33
  4. Step 4: Simplify right side
    20,107.05x = 393,942,466.72
  5. Step 5: Solve for x
    x = 393,942,466.72/20,107.05
  6. Step 6: Final answer
    x = 19,592.26

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1.5x scale

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.