Home / 21,190.06-31,772.73-6,394.54

Finding the Fourth Proportional to 21,190.06, 31,772.73 and 6,394.54

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Solution

The fourth proportional to 21,190.06, 31,772.73 and 6,394.54 is: 9,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.06 : 31,772.73 = 6,394.54 : x
  2. Step 2: Convert to fraction form
    21,190.06/31,772.73 = 6,394.54/x
  3. Step 3: Cross multiply
    21,190.06x = 31,772.73 × 6,394.54
  4. Step 4: Simplify right side
    21,190.06x = 203,171,992.89
  5. Step 5: Solve for x
    x = 203,171,992.89/21,190.06
  6. Step 6: Final answer
    x = 9,588.08

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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.