Home / 33,865.74-46,736.40-20,436.78

Finding the Fourth Proportional to 33,865.74, 46,736.40 and 20,436.78

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Solution

The fourth proportional to 33,865.74, 46,736.40 and 20,436.78 is: 28,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,865.74 : 46,736.40 = 20,436.78 : x
  2. Step 2: Convert to fraction form
    33,865.74/46,736.40 = 20,436.78/x
  3. Step 3: Cross multiply
    33,865.74x = 46,736.40 × 20,436.78
  4. Step 4: Simplify right side
    33,865.74x = 955,141,524.79
  5. Step 5: Solve for x
    x = 955,141,524.79/33,865.74
  6. Step 6: Final answer
    x = 28,203.77

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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.