Home / 32,778.33-45,221.27-20,181.21

Finding the Fourth Proportional to 32,778.33, 45,221.27 and 20,181.21

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Solution

The fourth proportional to 32,778.33, 45,221.27 and 20,181.21 is: 27,842.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,778.33 : 45,221.27 = 20,181.21 : x
  2. Step 2: Convert to fraction form
    32,778.33/45,221.27 = 20,181.21/x
  3. Step 3: Cross multiply
    32,778.33x = 45,221.27 × 20,181.21
  4. Step 4: Simplify right side
    32,778.33x = 912,619,845.43
  5. Step 5: Solve for x
    x = 912,619,845.43/32,778.33
  6. Step 6: Final answer
    x = 27,842.17

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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.