Home / 20,362.21-28,093.73-13,180.75

Finding the Fourth Proportional to 20,362.21, 28,093.73 and 13,180.75

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Solution

The fourth proportional to 20,362.21, 28,093.73 and 13,180.75 is: 18,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.21 : 28,093.73 = 13,180.75 : x
  2. Step 2: Convert to fraction form
    20,362.21/28,093.73 = 13,180.75/x
  3. Step 3: Cross multiply
    20,362.21x = 28,093.73 × 13,180.75
  4. Step 4: Simplify right side
    20,362.21x = 370,296,394.42
  5. Step 5: Solve for x
    x = 370,296,394.42/20,362.21
  6. Step 6: Final answer
    x = 18,185.47

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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.