Home / 19,792.40-29,696.44-8,691.36

Finding the Fourth Proportional to 19,792.40, 29,696.44 and 8,691.36

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Solution

The fourth proportional to 19,792.40, 29,696.44 and 8,691.36 is: 13,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.40 : 29,696.44 = 8,691.36 : x
  2. Step 2: Convert to fraction form
    19,792.40/29,696.44 = 8,691.36/x
  3. Step 3: Cross multiply
    19,792.40x = 29,696.44 × 8,691.36
  4. Step 4: Simplify right side
    19,792.40x = 258,102,450.76
  5. Step 5: Solve for x
    x = 258,102,450.76/19,792.40
  6. Step 6: Final answer
    x = 13,040.48

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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.