Home / 33,115.77-45,699.56-18,778.32

Finding the Fourth Proportional to 33,115.77, 45,699.56 and 18,778.32

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Solution

The fourth proportional to 33,115.77, 45,699.56 and 18,778.32 is: 25,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.77 : 45,699.56 = 18,778.32 : x
  2. Step 2: Convert to fraction form
    33,115.77/45,699.56 = 18,778.32/x
  3. Step 3: Cross multiply
    33,115.77x = 45,699.56 × 18,778.32
  4. Step 4: Simplify right side
    33,115.77x = 858,160,867.65
  5. Step 5: Solve for x
    x = 858,160,867.65/33,115.77
  6. Step 6: Final answer
    x = 25,913.96

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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.