Home / 21,112.62-31,675.26-6,322.02

Finding the Fourth Proportional to 21,112.62, 31,675.26 and 6,322.02

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Solution

The fourth proportional to 21,112.62, 31,675.26 and 6,322.02 is: 9,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,112.62 : 31,675.26 = 6,322.02 : x
  2. Step 2: Convert to fraction form
    21,112.62/31,675.26 = 6,322.02/x
  3. Step 3: Cross multiply
    21,112.62x = 31,675.26 × 6,322.02
  4. Step 4: Simplify right side
    21,112.62x = 200,251,627.23
  5. Step 5: Solve for x
    x = 200,251,627.23/21,112.62
  6. Step 6: Final answer
    x = 9,484.93

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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.