Home / 33,109.16-45,688.26-18,961.64

Finding the Fourth Proportional to 33,109.16, 45,688.26 and 18,961.64

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Solution

The fourth proportional to 33,109.16, 45,688.26 and 18,961.64 is: 26,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,109.16 : 45,688.26 = 18,961.64 : x
  2. Step 2: Convert to fraction form
    33,109.16/45,688.26 = 18,961.64/x
  3. Step 3: Cross multiply
    33,109.16x = 45,688.26 × 18,961.64
  4. Step 4: Simplify right side
    33,109.16x = 866,324,338.35
  5. Step 5: Solve for x
    x = 866,324,338.35/33,109.16
  6. Step 6: Final answer
    x = 26,165.70

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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.