Home / 28,733.65-39,629.94-19,664.38

Finding the Fourth Proportional to 28,733.65, 39,629.94 and 19,664.38

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Solution

The fourth proportional to 28,733.65, 39,629.94 and 19,664.38 is: 27,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,733.65 : 39,629.94 = 19,664.38 : x
  2. Step 2: Convert to fraction form
    28,733.65/39,629.94 = 19,664.38/x
  3. Step 3: Cross multiply
    28,733.65x = 39,629.94 × 19,664.38
  4. Step 4: Simplify right side
    28,733.65x = 779,298,175.33
  5. Step 5: Solve for x
    x = 779,298,175.33/28,733.65
  6. Step 6: Final answer
    x = 27,121.45

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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.