Home / 21,982.51-32,974.67-6,400.14

Finding the Fourth Proportional to 21,982.51, 32,974.67 and 6,400.14

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Solution

The fourth proportional to 21,982.51, 32,974.67 and 6,400.14 is: 9,600.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.51 : 32,974.67 = 6,400.14 : x
  2. Step 2: Convert to fraction form
    21,982.51/32,974.67 = 6,400.14/x
  3. Step 3: Cross multiply
    21,982.51x = 32,974.67 × 6,400.14
  4. Step 4: Simplify right side
    21,982.51x = 211,042,504.45
  5. Step 5: Solve for x
    x = 211,042,504.45/21,982.51
  6. Step 6: Final answer
    x = 9,600.47

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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.