Home / 28,718.82-43,075.94-18,158.04

Finding the Fourth Proportional to 28,718.82, 43,075.94 and 18,158.04

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Solution

The fourth proportional to 28,718.82, 43,075.94 and 18,158.04 is: 27,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.82 : 43,075.94 = 18,158.04 : x
  2. Step 2: Convert to fraction form
    28,718.82/43,075.94 = 18,158.04/x
  3. Step 3: Cross multiply
    28,718.82x = 43,075.94 × 18,158.04
  4. Step 4: Simplify right side
    28,718.82x = 782,174,550.77
  5. Step 5: Solve for x
    x = 782,174,550.77/28,718.82
  6. Step 6: Final answer
    x = 27,235.61

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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.