Home / 33,785.73-46,623.98-18,678.76

Finding the Fourth Proportional to 33,785.73, 46,623.98 and 18,678.76

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Solution

The fourth proportional to 33,785.73, 46,623.98 and 18,678.76 is: 25,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,785.73 : 46,623.98 = 18,678.76 : x
  2. Step 2: Convert to fraction form
    33,785.73/46,623.98 = 18,678.76/x
  3. Step 3: Cross multiply
    33,785.73x = 46,623.98 × 18,678.76
  4. Step 4: Simplify right side
    33,785.73x = 870,878,132.66
  5. Step 5: Solve for x
    x = 870,878,132.66/33,785.73
  6. Step 6: Final answer
    x = 25,776.51

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Double scale
Find fourth proportional to 33,786.73, 46,625.36 and 18,679.76
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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.