Home / 20,361.12-28,096.43-13,993.31

Finding the Fourth Proportional to 20,361.12, 28,096.43 and 13,993.31

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Solution

The fourth proportional to 20,361.12, 28,096.43 and 13,993.31 is: 19,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.12 : 28,096.43 = 13,993.31 : x
  2. Step 2: Convert to fraction form
    20,361.12/28,096.43 = 13,993.31/x
  3. Step 3: Cross multiply
    20,361.12x = 28,096.43 × 13,993.31
  4. Step 4: Simplify right side
    20,361.12x = 393,161,844.43
  5. Step 5: Solve for x
    x = 393,161,844.43/20,361.12
  6. Step 6: Final answer
    x = 19,309.44

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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.