Home / 21,171.92-29,215.65-11,610.27

Finding the Fourth Proportional to 21,171.92, 29,215.65 and 11,610.27

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Solution

The fourth proportional to 21,171.92, 29,215.65 and 11,610.27 is: 16,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171.92 : 29,215.65 = 11,610.27 : x
  2. Step 2: Convert to fraction form
    21,171.92/29,215.65 = 11,610.27/x
  3. Step 3: Cross multiply
    21,171.92x = 29,215.65 × 11,610.27
  4. Step 4: Simplify right side
    21,171.92x = 339,201,628.26
  5. Step 5: Solve for x
    x = 339,201,628.26/21,171.92
  6. Step 6: Final answer
    x = 16,021.30

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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.