Home / 19,789.72-27,322.56-17,661.58

Finding the Fourth Proportional to 19,789.72, 27,322.56 and 17,661.58

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Solution

The fourth proportional to 19,789.72, 27,322.56 and 17,661.58 is: 24,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.72 : 27,322.56 = 17,661.58 : x
  2. Step 2: Convert to fraction form
    19,789.72/27,322.56 = 17,661.58/x
  3. Step 3: Cross multiply
    19,789.72x = 27,322.56 × 17,661.58
  4. Step 4: Simplify right side
    19,789.72x = 482,559,579.24
  5. Step 5: Solve for x
    x = 482,559,579.24/19,789.72
  6. Step 6: Final answer
    x = 24,384.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.