Home / 21,230.22-31,845.62-8,083.32

Finding the Fourth Proportional to 21,230.22, 31,845.62 and 8,083.32

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Solution

The fourth proportional to 21,230.22, 31,845.62 and 8,083.32 is: 12,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.22 : 31,845.62 = 8,083.32 : x
  2. Step 2: Convert to fraction form
    21,230.22/31,845.62 = 8,083.32/x
  3. Step 3: Cross multiply
    21,230.22x = 31,845.62 × 8,083.32
  4. Step 4: Simplify right side
    21,230.22x = 257,418,337.06
  5. Step 5: Solve for x
    x = 257,418,337.06/21,230.22
  6. Step 6: Final answer
    x = 12,125.09

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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.