Home / 17,431.71-26,147.21-11,812.02

Finding the Fourth Proportional to 17,431.71, 26,147.21 and 11,812.02

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Solution

The fourth proportional to 17,431.71, 26,147.21 and 11,812.02 is: 17,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,431.71 : 26,147.21 = 11,812.02 : x
  2. Step 2: Convert to fraction form
    17,431.71/26,147.21 = 11,812.02/x
  3. Step 3: Cross multiply
    17,431.71x = 26,147.21 × 11,812.02
  4. Step 4: Simplify right side
    17,431.71x = 308,851,308.40
  5. Step 5: Solve for x
    x = 308,851,308.40/17,431.71
  6. Step 6: Final answer
    x = 17,717.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.