Home / 20,172.71-27,837.83-11,673.65

Finding the Fourth Proportional to 20,172.71, 27,837.83 and 11,673.65

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Solution

The fourth proportional to 20,172.71, 27,837.83 and 11,673.65 is: 16,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.71 : 27,837.83 = 11,673.65 : x
  2. Step 2: Convert to fraction form
    20,172.71/27,837.83 = 11,673.65/x
  3. Step 3: Cross multiply
    20,172.71x = 27,837.83 × 11,673.65
  4. Step 4: Simplify right side
    20,172.71x = 324,969,182.96
  5. Step 5: Solve for x
    x = 324,969,182.96/20,172.71
  6. Step 6: Final answer
    x = 16,109.34

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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.