Home / 21,271.82-31,907.73-9,571.37

Finding the Fourth Proportional to 21,271.82, 31,907.73 and 9,571.37

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Solution

The fourth proportional to 21,271.82, 31,907.73 and 9,571.37 is: 14,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.82 : 31,907.73 = 9,571.37 : x
  2. Step 2: Convert to fraction form
    21,271.82/31,907.73 = 9,571.37/x
  3. Step 3: Cross multiply
    21,271.82x = 31,907.73 × 9,571.37
  4. Step 4: Simplify right side
    21,271.82x = 305,400,530.15
  5. Step 5: Solve for x
    x = 305,400,530.15/21,271.82
  6. Step 6: Final answer
    x = 14,357.05

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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.