Home / 28,715.94-43,074.71-7,939.44

Finding the Fourth Proportional to 28,715.94, 43,074.71 and 7,939.44

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Solution

The fourth proportional to 28,715.94, 43,074.71 and 7,939.44 is: 11,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.94 : 43,074.71 = 7,939.44 : x
  2. Step 2: Convert to fraction form
    28,715.94/43,074.71 = 7,939.44/x
  3. Step 3: Cross multiply
    28,715.94x = 43,074.71 × 7,939.44
  4. Step 4: Simplify right side
    28,715.94x = 341,989,075.56
  5. Step 5: Solve for x
    x = 341,989,075.56/28,715.94
  6. Step 6: Final answer
    x = 11,909.38

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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.