Home / 20,287.26-27,994.68-11,673.72

Finding the Fourth Proportional to 20,287.26, 27,994.68 and 11,673.72

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Solution

The fourth proportional to 20,287.26, 27,994.68 and 11,673.72 is: 16,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.26 : 27,994.68 = 11,673.72 : x
  2. Step 2: Convert to fraction form
    20,287.26/27,994.68 = 11,673.72/x
  3. Step 3: Cross multiply
    20,287.26x = 27,994.68 × 11,673.72
  4. Step 4: Simplify right side
    20,287.26x = 326,802,055.81
  5. Step 5: Solve for x
    x = 326,802,055.81/20,287.26
  6. Step 6: Final answer
    x = 16,108.73

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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.