Home / 21,093.13-29,108.32-11,661.76

Finding the Fourth Proportional to 21,093.13, 29,108.32 and 11,661.76

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Solution

The fourth proportional to 21,093.13, 29,108.32 and 11,661.76 is: 16,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.13 : 29,108.32 = 11,661.76 : x
  2. Step 2: Convert to fraction form
    21,093.13/29,108.32 = 11,661.76/x
  3. Step 3: Cross multiply
    21,093.13x = 29,108.32 × 11,661.76
  4. Step 4: Simplify right side
    21,093.13x = 339,454,241.84
  5. Step 5: Solve for x
    x = 339,454,241.84/21,093.13
  6. Step 6: Final answer
    x = 16,093.12

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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.