Home / 21,932.39-30,266.32-12,372.30

Finding the Fourth Proportional to 21,932.39, 30,266.32 and 12,372.30

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Solution

The fourth proportional to 21,932.39, 30,266.32 and 12,372.30 is: 17,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.39 : 30,266.32 = 12,372.30 : x
  2. Step 2: Convert to fraction form
    21,932.39/30,266.32 = 12,372.30/x
  3. Step 3: Cross multiply
    21,932.39x = 30,266.32 × 12,372.30
  4. Step 4: Simplify right side
    21,932.39x = 374,463,990.94
  5. Step 5: Solve for x
    x = 374,463,990.94/21,932.39
  6. Step 6: Final answer
    x = 17,073.56

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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.