Home / 19,608.49-29,416.38-7,929.91

Finding the Fourth Proportional to 19,608.49, 29,416.38 and 7,929.91

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Solution

The fourth proportional to 19,608.49, 29,416.38 and 7,929.91 is: 11,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.49 : 29,416.38 = 7,929.91 : x
  2. Step 2: Convert to fraction form
    19,608.49/29,416.38 = 7,929.91/x
  3. Step 3: Cross multiply
    19,608.49x = 29,416.38 × 7,929.91
  4. Step 4: Simplify right side
    19,608.49x = 233,269,059.19
  5. Step 5: Solve for x
    x = 233,269,059.19/19,608.49
  6. Step 6: Final answer
    x = 11,896.33

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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.