Home / 28,939.94-39,942.24-17,003.28

Finding the Fourth Proportional to 28,939.94, 39,942.24 and 17,003.28

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Solution

The fourth proportional to 28,939.94, 39,942.24 and 17,003.28 is: 23,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.94 : 39,942.24 = 17,003.28 : x
  2. Step 2: Convert to fraction form
    28,939.94/39,942.24 = 17,003.28/x
  3. Step 3: Cross multiply
    28,939.94x = 39,942.24 × 17,003.28
  4. Step 4: Simplify right side
    28,939.94x = 679,148,805.82
  5. Step 5: Solve for x
    x = 679,148,805.82/28,939.94
  6. Step 6: Final answer
    x = 23,467.53

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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.