Home / 30,372.14-41,889.87-19,765.19

Finding the Fourth Proportional to 30,372.14, 41,889.87 and 19,765.19

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Solution

The fourth proportional to 30,372.14, 41,889.87 and 19,765.19 is: 27,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.14 : 41,889.87 = 19,765.19 : x
  2. Step 2: Convert to fraction form
    30,372.14/41,889.87 = 19,765.19/x
  3. Step 3: Cross multiply
    30,372.14x = 41,889.87 × 19,765.19
  4. Step 4: Simplify right side
    30,372.14x = 827,961,239.63
  5. Step 5: Solve for x
    x = 827,961,239.63/30,372.14
  6. Step 6: Final answer
    x = 27,260.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.