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Finding the Fourth Proportional to 22,064.26, 30,448.67 and 12,128.26

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Solution

The fourth proportional to 22,064.26, 30,448.67 and 12,128.26 is: 16,736.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,064.26 : 30,448.67 = 12,128.26 : x
  2. Step 2: Convert to fraction form
    22,064.26/30,448.67 = 12,128.26/x
  3. Step 3: Cross multiply
    22,064.26x = 30,448.67 × 12,128.26
  4. Step 4: Simplify right side
    22,064.26x = 369,289,386.41
  5. Step 5: Solve for x
    x = 369,289,386.41/22,064.26
  6. Step 6: Final answer
    x = 16,736.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.