Home / 19,093.29-26,380.41-15,090.78

Finding the Fourth Proportional to 19,093.29, 26,380.41 and 15,090.78

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Solution

The fourth proportional to 19,093.29, 26,380.41 and 15,090.78 is: 20,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.29 : 26,380.41 = 15,090.78 : x
  2. Step 2: Convert to fraction form
    19,093.29/26,380.41 = 15,090.78/x
  3. Step 3: Cross multiply
    19,093.29x = 26,380.41 × 15,090.78
  4. Step 4: Simplify right side
    19,093.29x = 398,100,963.62
  5. Step 5: Solve for x
    x = 398,100,963.62/19,093.29
  6. Step 6: Final answer
    x = 20,850.31

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1.5x scale

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.