Home / 20,794.60-28,653.78-16,064.20

Finding the Fourth Proportional to 20,794.60, 28,653.78 and 16,064.20

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Solution

The fourth proportional to 20,794.60, 28,653.78 and 16,064.20 is: 22,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.60 : 28,653.78 = 16,064.20 : x
  2. Step 2: Convert to fraction form
    20,794.60/28,653.78 = 16,064.20/x
  3. Step 3: Cross multiply
    20,794.60x = 28,653.78 × 16,064.20
  4. Step 4: Simplify right side
    20,794.60x = 460,300,052.68
  5. Step 5: Solve for x
    x = 460,300,052.68/20,794.60
  6. Step 6: Final answer
    x = 22,135.56

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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.