Home / 28,968.72-39,974.87-16,219.73

Finding the Fourth Proportional to 28,968.72, 39,974.87 and 16,219.73

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Solution

The fourth proportional to 28,968.72, 39,974.87 and 16,219.73 is: 22,382.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.72 : 39,974.87 = 16,219.73 : x
  2. Step 2: Convert to fraction form
    28,968.72/39,974.87 = 16,219.73/x
  3. Step 3: Cross multiply
    28,968.72x = 39,974.87 × 16,219.73
  4. Step 4: Simplify right side
    28,968.72x = 648,381,317.21
  5. Step 5: Solve for x
    x = 648,381,317.21/28,968.72
  6. Step 6: Final answer
    x = 22,382.12

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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.