Home / 21,481.36-29,646.06-11,922.14

Finding the Fourth Proportional to 21,481.36, 29,646.06 and 11,922.14

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Solution

The fourth proportional to 21,481.36, 29,646.06 and 11,922.14 is: 16,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.36 : 29,646.06 = 11,922.14 : x
  2. Step 2: Convert to fraction form
    21,481.36/29,646.06 = 11,922.14/x
  3. Step 3: Cross multiply
    21,481.36x = 29,646.06 × 11,922.14
  4. Step 4: Simplify right side
    21,481.36x = 353,444,477.77
  5. Step 5: Solve for x
    x = 353,444,477.77/21,481.36
  6. Step 6: Final answer
    x = 16,453.54

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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.