Home / 19,203.08-28,817.68-11,784.90

Finding the Fourth Proportional to 19,203.08, 28,817.68 and 11,784.90

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Solution

The fourth proportional to 19,203.08, 28,817.68 and 11,784.90 is: 17,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.08 : 28,817.68 = 11,784.90 : x
  2. Step 2: Convert to fraction form
    19,203.08/28,817.68 = 11,784.90/x
  3. Step 3: Cross multiply
    19,203.08x = 28,817.68 × 11,784.90
  4. Step 4: Simplify right side
    19,203.08x = 339,613,477.03
  5. Step 5: Solve for x
    x = 339,613,477.03/19,203.08
  6. Step 6: Final answer
    x = 17,685.36

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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.