Home / 21,092.64-29,108.43-11,661.81

Finding the Fourth Proportional to 21,092.64, 29,108.43 and 11,661.81

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Solution

The fourth proportional to 21,092.64, 29,108.43 and 11,661.81 is: 16,093.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.64 : 29,108.43 = 11,661.81 : x
  2. Step 2: Convert to fraction form
    21,092.64/29,108.43 = 11,661.81/x
  3. Step 3: Cross multiply
    21,092.64x = 29,108.43 × 11,661.81
  4. Step 4: Simplify right side
    21,092.64x = 339,456,980.06
  5. Step 5: Solve for x
    x = 339,456,980.06/21,092.64
  6. Step 6: Final answer
    x = 16,093.62

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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.