Home / 20,598.66-28,424.37-11,986.44

Finding the Fourth Proportional to 20,598.66, 28,424.37 and 11,986.44

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Solution

The fourth proportional to 20,598.66, 28,424.37 and 11,986.44 is: 16,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.66 : 28,424.37 = 11,986.44 : x
  2. Step 2: Convert to fraction form
    20,598.66/28,424.37 = 11,986.44/x
  3. Step 3: Cross multiply
    20,598.66x = 28,424.37 × 11,986.44
  4. Step 4: Simplify right side
    20,598.66x = 340,707,005.54
  5. Step 5: Solve for x
    x = 340,707,005.54/20,598.66
  6. Step 6: Final answer
    x = 16,540.25

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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.