Home / 39,003.82-53,825.30-21,098.76

Finding the Fourth Proportional to 39,003.82, 53,825.30 and 21,098.76

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Solution

The fourth proportional to 39,003.82, 53,825.30 and 21,098.76 is: 29,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,003.82 : 53,825.30 = 21,098.76 : x
  2. Step 2: Convert to fraction form
    39,003.82/53,825.30 = 21,098.76/x
  3. Step 3: Cross multiply
    39,003.82x = 53,825.30 × 21,098.76
  4. Step 4: Simplify right side
    39,003.82x = 1,135,647,086.63
  5. Step 5: Solve for x
    x = 1,135,647,086.63/39,003.82
  6. Step 6: Final answer
    x = 29,116.30

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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.