Home / 28,917.54-39,894.39-19,489.14

Finding the Fourth Proportional to 28,917.54, 39,894.39 and 19,489.14

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Solution

The fourth proportional to 28,917.54, 39,894.39 and 19,489.14 is: 26,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.54 : 39,894.39 = 19,489.14 : x
  2. Step 2: Convert to fraction form
    28,917.54/39,894.39 = 19,489.14/x
  3. Step 3: Cross multiply
    28,917.54x = 39,894.39 × 19,489.14
  4. Step 4: Simplify right side
    28,917.54x = 777,507,351.92
  5. Step 5: Solve for x
    x = 777,507,351.92/28,917.54
  6. Step 6: Final answer
    x = 26,887.05

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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.