Home / 22,476.40-33,721.80-9,991.60

Finding the Fourth Proportional to 22,476.40, 33,721.80 and 9,991.60

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Solution

The fourth proportional to 22,476.40, 33,721.80 and 9,991.60 is: 14,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,476.40 : 33,721.80 = 9,991.60 : x
  2. Step 2: Convert to fraction form
    22,476.40/33,721.80 = 9,991.60/x
  3. Step 3: Cross multiply
    22,476.40x = 33,721.80 × 9,991.60
  4. Step 4: Simplify right side
    22,476.40x = 336,934,736.88
  5. Step 5: Solve for x
    x = 336,934,736.88/22,476.40
  6. Step 6: Final answer
    x = 14,990.60

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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.