Home / 20,452.36-30,695-11,573.12

Finding the Fourth Proportional to 20,452.36, 30,695 and 11,573.12

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Solution

The fourth proportional to 20,452.36, 30,695 and 11,573.12 is: 17,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.36 : 30,695 = 11,573.12 : x
  2. Step 2: Convert to fraction form
    20,452.36/30,695 = 11,573.12/x
  3. Step 3: Cross multiply
    20,452.36x = 30,695 × 11,573.12
  4. Step 4: Simplify right side
    20,452.36x = 355,236,918.40
  5. Step 5: Solve for x
    x = 355,236,918.40/20,452.36
  6. Step 6: Final answer
    x = 17,368.99

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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.