Home / 19,540.18-29,286.21-11,113.75

Finding the Fourth Proportional to 19,540.18, 29,286.21 and 11,113.75

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Solution

The fourth proportional to 19,540.18, 29,286.21 and 11,113.75 is: 16,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.18 : 29,286.21 = 11,113.75 : x
  2. Step 2: Convert to fraction form
    19,540.18/29,286.21 = 11,113.75/x
  3. Step 3: Cross multiply
    19,540.18x = 29,286.21 × 11,113.75
  4. Step 4: Simplify right side
    19,540.18x = 325,479,616.39
  5. Step 5: Solve for x
    x = 325,479,616.39/19,540.18
  6. Step 6: Final answer
    x = 16,656.94

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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.