Home / 28,969.48-39,995.94-19,910.44

Finding the Fourth Proportional to 28,969.48, 39,995.94 and 19,910.44

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Solution

The fourth proportional to 28,969.48, 39,995.94 and 19,910.44 is: 27,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.48 : 39,995.94 = 19,910.44 : x
  2. Step 2: Convert to fraction form
    28,969.48/39,995.94 = 19,910.44/x
  3. Step 3: Cross multiply
    28,969.48x = 39,995.94 × 19,910.44
  4. Step 4: Simplify right side
    28,969.48x = 796,336,763.61
  5. Step 5: Solve for x
    x = 796,336,763.61/28,969.48
  6. Step 6: Final answer
    x = 27,488.82

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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.