Home / 36,721.56-50,678.66-20,809.92

Finding the Fourth Proportional to 36,721.56, 50,678.66 and 20,809.92

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Solution

The fourth proportional to 36,721.56, 50,678.66 and 20,809.92 is: 28,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.56 : 50,678.66 = 20,809.92 : x
  2. Step 2: Convert to fraction form
    36,721.56/50,678.66 = 20,809.92/x
  3. Step 3: Cross multiply
    36,721.56x = 50,678.66 × 20,809.92
  4. Step 4: Simplify right side
    36,721.56x = 1,054,618,860.31
  5. Step 5: Solve for x
    x = 1,054,618,860.31/36,721.56
  6. Step 6: Final answer
    x = 28,719.34

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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.