Home / 36,907.65-50,930.67-20,991.75

Finding the Fourth Proportional to 36,907.65, 50,930.67 and 20,991.75

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Solution

The fourth proportional to 36,907.65, 50,930.67 and 20,991.75 is: 28,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,907.65 : 50,930.67 = 20,991.75 : x
  2. Step 2: Convert to fraction form
    36,907.65/50,930.67 = 20,991.75/x
  3. Step 3: Cross multiply
    36,907.65x = 50,930.67 × 20,991.75
  4. Step 4: Simplify right side
    36,907.65x = 1,069,123,891.97
  5. Step 5: Solve for x
    x = 1,069,123,891.97/36,907.65
  6. Step 6: Final answer
    x = 28,967.55

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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.