Home / 31,440.78-43,388.97-17,294.34

Finding the Fourth Proportional to 31,440.78, 43,388.97 and 17,294.34

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Solution

The fourth proportional to 31,440.78, 43,388.97 and 17,294.34 is: 23,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.78 : 43,388.97 = 17,294.34 : x
  2. Step 2: Convert to fraction form
    31,440.78/43,388.97 = 17,294.34/x
  3. Step 3: Cross multiply
    31,440.78x = 43,388.97 × 17,294.34
  4. Step 4: Simplify right side
    31,440.78x = 750,383,599.43
  5. Step 5: Solve for x
    x = 750,383,599.43/31,440.78
  6. Step 6: Final answer
    x = 23,866.57

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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.