Home / 21,292.06-31,936.60-7,962.52

Finding the Fourth Proportional to 21,292.06, 31,936.60 and 7,962.52

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Solution

The fourth proportional to 21,292.06, 31,936.60 and 7,962.52 is: 11,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.06 : 31,936.60 = 7,962.52 : x
  2. Step 2: Convert to fraction form
    21,292.06/31,936.60 = 7,962.52/x
  3. Step 3: Cross multiply
    21,292.06x = 31,936.60 × 7,962.52
  4. Step 4: Simplify right side
    21,292.06x = 254,295,816.23
  5. Step 5: Solve for x
    x = 254,295,816.23/21,292.06
  6. Step 6: Final answer
    x = 11,943.22

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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.