Home / 33,309.21-45,987.11-31,710.75

Finding the Fourth Proportional to 33,309.21, 45,987.11 and 31,710.75

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Solution

The fourth proportional to 33,309.21, 45,987.11 and 31,710.75 is: 43,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,309.21 : 45,987.11 = 31,710.75 : x
  2. Step 2: Convert to fraction form
    33,309.21/45,987.11 = 31,710.75/x
  3. Step 3: Cross multiply
    33,309.21x = 45,987.11 × 31,710.75
  4. Step 4: Simplify right side
    33,309.21x = 1,458,285,748.43
  5. Step 5: Solve for x
    x = 1,458,285,748.43/33,309.21
  6. Step 6: Final answer
    x = 43,780.26

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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.