Home / 20,361.94-28,100.01-11,409.46

Finding the Fourth Proportional to 20,361.94, 28,100.01 and 11,409.46

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Solution

The fourth proportional to 20,361.94, 28,100.01 and 11,409.46 is: 15,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.94 : 28,100.01 = 11,409.46 : x
  2. Step 2: Convert to fraction form
    20,361.94/28,100.01 = 11,409.46/x
  3. Step 3: Cross multiply
    20,361.94x = 28,100.01 × 11,409.46
  4. Step 4: Simplify right side
    20,361.94x = 320,605,940.09
  5. Step 5: Solve for x
    x = 320,605,940.09/20,361.94
  6. Step 6: Final answer
    x = 15,745.35

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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.