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Finding the Fourth Proportional to 18,556.16, 27,784.02 and 13,588.16

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Solution

The fourth proportional to 18,556.16, 27,784.02 and 13,588.16 is: 20,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.16 : 27,784.02 = 13,588.16 : x
  2. Step 2: Convert to fraction form
    18,556.16/27,784.02 = 13,588.16/x
  3. Step 3: Cross multiply
    18,556.16x = 27,784.02 × 13,588.16
  4. Step 4: Simplify right side
    18,556.16x = 377,533,709.20
  5. Step 5: Solve for x
    x = 377,533,709.20/18,556.16
  6. Step 6: Final answer
    x = 20,345.47

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