Home / 28,919.94-39,907.43-16,981.65

Finding the Fourth Proportional to 28,919.94, 39,907.43 and 16,981.65

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Solution

The fourth proportional to 28,919.94, 39,907.43 and 16,981.65 is: 23,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.94 : 39,907.43 = 16,981.65 : x
  2. Step 2: Convert to fraction form
    28,919.94/39,907.43 = 16,981.65/x
  3. Step 3: Cross multiply
    28,919.94x = 39,907.43 × 16,981.65
  4. Step 4: Simplify right side
    28,919.94x = 677,694,082.95
  5. Step 5: Solve for x
    x = 677,694,082.95/28,919.94
  6. Step 6: Final answer
    x = 23,433.46

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1.5x scale

Why These Related Problems?

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