Home / 33,107.38-45,688.18-18,203.38

Finding the Fourth Proportional to 33,107.38, 45,688.18 and 18,203.38

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Solution

The fourth proportional to 33,107.38, 45,688.18 and 18,203.38 is: 25,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.38 : 45,688.18 = 18,203.38 : x
  2. Step 2: Convert to fraction form
    33,107.38/45,688.18 = 18,203.38/x
  3. Step 3: Cross multiply
    33,107.38x = 45,688.18 × 18,203.38
  4. Step 4: Simplify right side
    33,107.38x = 831,679,302.05
  5. Step 5: Solve for x
    x = 831,679,302.05/33,107.38
  6. Step 6: Final answer
    x = 25,120.66

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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.