Home / 19,241.50-28,778.86-11,325.15

Finding the Fourth Proportional to 19,241.50, 28,778.86 and 11,325.15

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Solution

The fourth proportional to 19,241.50, 28,778.86 and 11,325.15 is: 16,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.50 : 28,778.86 = 11,325.15 : x
  2. Step 2: Convert to fraction form
    19,241.50/28,778.86 = 11,325.15/x
  3. Step 3: Cross multiply
    19,241.50x = 28,778.86 × 11,325.15
  4. Step 4: Simplify right side
    19,241.50x = 325,924,906.33
  5. Step 5: Solve for x
    x = 325,924,906.33/19,241.50
  6. Step 6: Final answer
    x = 16,938.64

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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.