Home / 21,226.96-31,850.01-8,755.59

Finding the Fourth Proportional to 21,226.96, 31,850.01 and 8,755.59

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Solution

The fourth proportional to 21,226.96, 31,850.01 and 8,755.59 is: 13,137.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.96 : 31,850.01 = 8,755.59 : x
  2. Step 2: Convert to fraction form
    21,226.96/31,850.01 = 8,755.59/x
  3. Step 3: Cross multiply
    21,226.96x = 31,850.01 × 8,755.59
  4. Step 4: Simplify right side
    21,226.96x = 278,865,629.06
  5. Step 5: Solve for x
    x = 278,865,629.06/21,226.96
  6. Step 6: Final answer
    x = 13,137.33

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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.