Home / 21,162.08-29,203.62-11,601.96

Finding the Fourth Proportional to 21,162.08, 29,203.62 and 11,601.96

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Solution

The fourth proportional to 21,162.08, 29,203.62 and 11,601.96 is: 16,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.08 : 29,203.62 = 11,601.96 : x
  2. Step 2: Convert to fraction form
    21,162.08/29,203.62 = 11,601.96/x
  3. Step 3: Cross multiply
    21,162.08x = 29,203.62 × 11,601.96
  4. Step 4: Simplify right side
    21,162.08x = 338,819,231.10
  5. Step 5: Solve for x
    x = 338,819,231.10/21,162.08
  6. Step 6: Final answer
    x = 16,010.68

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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.