Home / 20,582.43-28,403.46-11,629.65

Finding the Fourth Proportional to 20,582.43, 28,403.46 and 11,629.65

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Solution

The fourth proportional to 20,582.43, 28,403.46 and 11,629.65 is: 16,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.43 : 28,403.46 = 11,629.65 : x
  2. Step 2: Convert to fraction form
    20,582.43/28,403.46 = 11,629.65/x
  3. Step 3: Cross multiply
    20,582.43x = 28,403.46 × 11,629.65
  4. Step 4: Simplify right side
    20,582.43x = 330,322,298.59
  5. Step 5: Solve for x
    x = 330,322,298.59/20,582.43
  6. Step 6: Final answer
    x = 16,048.75

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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.