Home / 19,422-26,812.44-13,081.92

Finding the Fourth Proportional to 19,422, 26,812.44 and 13,081.92

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Solution

The fourth proportional to 19,422, 26,812.44 and 13,081.92 is: 18,059.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422 : 26,812.44 = 13,081.92 : x
  2. Step 2: Convert to fraction form
    19,422/26,812.44 = 13,081.92/x
  3. Step 3: Cross multiply
    19,422x = 26,812.44 × 13,081.92
  4. Step 4: Simplify right side
    19,422x = 350,758,195.08
  5. Step 5: Solve for x
    x = 350,758,195.08/19,422
  6. Step 6: Final answer
    x = 18,059.84

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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.