Home / 21,170.06-31,774.22-11,796.33

Finding the Fourth Proportional to 21,170.06, 31,774.22 and 11,796.33

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Solution

The fourth proportional to 21,170.06, 31,774.22 and 11,796.33 is: 17,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,170.06 : 31,774.22 = 11,796.33 : x
  2. Step 2: Convert to fraction form
    21,170.06/31,774.22 = 11,796.33/x
  3. Step 3: Cross multiply
    21,170.06x = 31,774.22 × 11,796.33
  4. Step 4: Simplify right side
    21,170.06x = 374,819,125.63
  5. Step 5: Solve for x
    x = 374,819,125.63/21,170.06
  6. Step 6: Final answer
    x = 17,705.16

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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.