Home / 20,097.81-27,733.88-11,144.79

Finding the Fourth Proportional to 20,097.81, 27,733.88 and 11,144.79

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Solution

The fourth proportional to 20,097.81, 27,733.88 and 11,144.79 is: 15,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.81 : 27,733.88 = 11,144.79 : x
  2. Step 2: Convert to fraction form
    20,097.81/27,733.88 = 11,144.79/x
  3. Step 3: Cross multiply
    20,097.81x = 27,733.88 × 11,144.79
  4. Step 4: Simplify right side
    20,097.81x = 309,088,296.35
  5. Step 5: Solve for x
    x = 309,088,296.35/20,097.81
  6. Step 6: Final answer
    x = 15,379.20

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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.