Home / 20,172.87-27,842.04-11,673.54

Finding the Fourth Proportional to 20,172.87, 27,842.04 and 11,673.54

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Solution

The fourth proportional to 20,172.87, 27,842.04 and 11,673.54 is: 16,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.87 : 27,842.04 = 11,673.54 : x
  2. Step 2: Convert to fraction form
    20,172.87/27,842.04 = 11,673.54/x
  3. Step 3: Cross multiply
    20,172.87x = 27,842.04 × 11,673.54
  4. Step 4: Simplify right side
    20,172.87x = 325,015,167.62
  5. Step 5: Solve for x
    x = 325,015,167.62/20,172.87
  6. Step 6: Final answer
    x = 16,111.50

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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.