Home / 38,409.05-57,615.40-18,664.09

Finding the Fourth Proportional to 38,409.05, 57,615.40 and 18,664.09

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Solution

The fourth proportional to 38,409.05, 57,615.40 and 18,664.09 is: 27,997.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,409.05 : 57,615.40 = 18,664.09 : x
  2. Step 2: Convert to fraction form
    38,409.05/57,615.40 = 18,664.09/x
  3. Step 3: Cross multiply
    38,409.05x = 57,615.40 × 18,664.09
  4. Step 4: Simplify right side
    38,409.05x = 1,075,338,890.28
  5. Step 5: Solve for x
    x = 1,075,338,890.28/38,409.05
  6. Step 6: Final answer
    x = 27,997.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.