Home / 36,918.51-50,942.01-20,783.49

Finding the Fourth Proportional to 36,918.51, 50,942.01 and 20,783.49

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Solution

The fourth proportional to 36,918.51, 50,942.01 and 20,783.49 is: 28,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.51 : 50,942.01 = 20,783.49 : x
  2. Step 2: Convert to fraction form
    36,918.51/50,942.01 = 20,783.49/x
  3. Step 3: Cross multiply
    36,918.51x = 50,942.01 × 20,783.49
  4. Step 4: Simplify right side
    36,918.51x = 1,058,752,755.41
  5. Step 5: Solve for x
    x = 1,058,752,755.41/36,918.51
  6. Step 6: Final answer
    x = 28,678.10

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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.