Home / 33,086.13-45,682.70-20,356.44

Finding the Fourth Proportional to 33,086.13, 45,682.70 and 20,356.44

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Solution

The fourth proportional to 33,086.13, 45,682.70 and 20,356.44 is: 28,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,086.13 : 45,682.70 = 20,356.44 : x
  2. Step 2: Convert to fraction form
    33,086.13/45,682.70 = 20,356.44/x
  3. Step 3: Cross multiply
    33,086.13x = 45,682.70 × 20,356.44
  4. Step 4: Simplify right side
    33,086.13x = 929,937,039.81
  5. Step 5: Solve for x
    x = 929,937,039.81/33,086.13
  6. Step 6: Final answer
    x = 28,106.55

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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.