Home / 21,452.75-32,188.85-10,357.37

Finding the Fourth Proportional to 21,452.75, 32,188.85 and 10,357.37

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Solution

The fourth proportional to 21,452.75, 32,188.85 and 10,357.37 is: 15,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.75 : 32,188.85 = 10,357.37 : x
  2. Step 2: Convert to fraction form
    21,452.75/32,188.85 = 10,357.37/x
  3. Step 3: Cross multiply
    21,452.75x = 32,188.85 × 10,357.37
  4. Step 4: Simplify right side
    21,452.75x = 333,391,829.32
  5. Step 5: Solve for x
    x = 333,391,829.32/21,452.75
  6. Step 6: Final answer
    x = 15,540.75

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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.