Home / 21,230.67-31,846.06-7,190.84

Finding the Fourth Proportional to 21,230.67, 31,846.06 and 7,190.84

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Solution

The fourth proportional to 21,230.67, 31,846.06 and 7,190.84 is: 10,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.67 : 31,846.06 = 7,190.84 : x
  2. Step 2: Convert to fraction form
    21,230.67/31,846.06 = 7,190.84/x
  3. Step 3: Cross multiply
    21,230.67x = 31,846.06 × 7,190.84
  4. Step 4: Simplify right side
    21,230.67x = 228,999,922.09
  5. Step 5: Solve for x
    x = 228,999,922.09/21,230.67
  6. Step 6: Final answer
    x = 10,786.28

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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.