Home / 21,186.29-31,795.82-11,333.85

Finding the Fourth Proportional to 21,186.29, 31,795.82 and 11,333.85

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Solution

The fourth proportional to 21,186.29, 31,795.82 and 11,333.85 is: 17,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.29 : 31,795.82 = 11,333.85 : x
  2. Step 2: Convert to fraction form
    21,186.29/31,795.82 = 11,333.85/x
  3. Step 3: Cross multiply
    21,186.29x = 31,795.82 × 11,333.85
  4. Step 4: Simplify right side
    21,186.29x = 360,368,997.84
  5. Step 5: Solve for x
    x = 360,368,997.84/21,186.29
  6. Step 6: Final answer
    x = 17,009.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.