Home / 21,936.55-30,272.27-12,376.37

Finding the Fourth Proportional to 21,936.55, 30,272.27 and 12,376.37

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Solution

The fourth proportional to 21,936.55, 30,272.27 and 12,376.37 is: 17,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.55 : 30,272.27 = 12,376.37 : x
  2. Step 2: Convert to fraction form
    21,936.55/30,272.27 = 12,376.37/x
  3. Step 3: Cross multiply
    21,936.55x = 30,272.27 × 12,376.37
  4. Step 4: Simplify right side
    21,936.55x = 374,660,755.97
  5. Step 5: Solve for x
    x = 374,660,755.97/21,936.55
  6. Step 6: Final answer
    x = 17,079.29

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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.