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Finding the Fourth Proportional to 22,075.92, 30,454.92 and 13,120.56

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Solution

The fourth proportional to 22,075.92, 30,454.92 and 13,120.56 is: 18,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,075.92 : 30,454.92 = 13,120.56 : x
  2. Step 2: Convert to fraction form
    22,075.92/30,454.92 = 13,120.56/x
  3. Step 3: Cross multiply
    22,075.92x = 30,454.92 × 13,120.56
  4. Step 4: Simplify right side
    22,075.92x = 399,585,605.16
  5. Step 5: Solve for x
    x = 399,585,605.16/22,075.92
  6. Step 6: Final answer
    x = 18,100.52

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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.