Home / 28,967.98-39,993.87-19,908.94

Finding the Fourth Proportional to 28,967.98, 39,993.87 and 19,908.94

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Solution

The fourth proportional to 28,967.98, 39,993.87 and 19,908.94 is: 27,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.98 : 39,993.87 = 19,908.94 : x
  2. Step 2: Convert to fraction form
    28,967.98/39,993.87 = 19,908.94/x
  3. Step 3: Cross multiply
    28,967.98x = 39,993.87 × 19,908.94
  4. Step 4: Simplify right side
    28,967.98x = 796,235,558.20
  5. Step 5: Solve for x
    x = 796,235,558.20/28,967.98
  6. Step 6: Final answer
    x = 27,486.75

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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.