Home / 20,739.64-28,634.57-15,950.92

Finding the Fourth Proportional to 20,739.64, 28,634.57 and 15,950.92

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Solution

The fourth proportional to 20,739.64, 28,634.57 and 15,950.92 is: 22,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.64 : 28,634.57 = 15,950.92 : x
  2. Step 2: Convert to fraction form
    20,739.64/28,634.57 = 15,950.92/x
  3. Step 3: Cross multiply
    20,739.64x = 28,634.57 × 15,950.92
  4. Step 4: Simplify right side
    20,739.64x = 456,747,735.30
  5. Step 5: Solve for x
    x = 456,747,735.30/20,739.64
  6. Step 6: Final answer
    x = 22,022.93

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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.