Home / 28,278-39,027.24-17,100.08

Finding the Fourth Proportional to 28,278, 39,027.24 and 17,100.08

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Solution

The fourth proportional to 28,278, 39,027.24 and 17,100.08 is: 23,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278 : 39,027.24 = 17,100.08 : x
  2. Step 2: Convert to fraction form
    28,278/39,027.24 = 17,100.08/x
  3. Step 3: Cross multiply
    28,278x = 39,027.24 × 17,100.08
  4. Step 4: Simplify right side
    28,278x = 667,368,926.18
  5. Step 5: Solve for x
    x = 667,368,926.18/28,278
  6. Step 6: Final answer
    x = 23,600.29

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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.