Home / 21,631.06-29,850.33-12,199.54

Finding the Fourth Proportional to 21,631.06, 29,850.33 and 12,199.54

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Solution

The fourth proportional to 21,631.06, 29,850.33 and 12,199.54 is: 16,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.06 : 29,850.33 = 12,199.54 : x
  2. Step 2: Convert to fraction form
    21,631.06/29,850.33 = 12,199.54/x
  3. Step 3: Cross multiply
    21,631.06x = 29,850.33 × 12,199.54
  4. Step 4: Simplify right side
    21,631.06x = 364,160,294.85
  5. Step 5: Solve for x
    x = 364,160,294.85/21,631.06
  6. Step 6: Final answer
    x = 16,835.06

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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.