Home / 20,377.16-30,540.18-11,016.80

Finding the Fourth Proportional to 20,377.16, 30,540.18 and 11,016.80

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Solution

The fourth proportional to 20,377.16, 30,540.18 and 11,016.80 is: 16,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.16 : 30,540.18 = 11,016.80 : x
  2. Step 2: Convert to fraction form
    20,377.16/30,540.18 = 11,016.80/x
  3. Step 3: Cross multiply
    20,377.16x = 30,540.18 × 11,016.80
  4. Step 4: Simplify right side
    20,377.16x = 336,455,055.02
  5. Step 5: Solve for x
    x = 336,455,055.02/20,377.16
  6. Step 6: Final answer
    x = 16,511.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.