Home / 36,907.87-50,935.68-20,991.37

Finding the Fourth Proportional to 36,907.87, 50,935.68 and 20,991.37

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Solution

The fourth proportional to 36,907.87, 50,935.68 and 20,991.37 is: 28,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,907.87 : 50,935.68 = 20,991.37 : x
  2. Step 2: Convert to fraction form
    36,907.87/50,935.68 = 20,991.37/x
  3. Step 3: Cross multiply
    36,907.87x = 50,935.68 × 20,991.37
  4. Step 4: Simplify right side
    36,907.87x = 1,069,209,345.45
  5. Step 5: Solve for x
    x = 1,069,209,345.45/36,907.87
  6. Step 6: Final answer
    x = 28,969.69

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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.