Home / 27,938.10-41,907.15-7,161.60

Finding the Fourth Proportional to 27,938.10, 41,907.15 and 7,161.60

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Solution

The fourth proportional to 27,938.10, 41,907.15 and 7,161.60 is: 10,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.10 : 41,907.15 = 7,161.60 : x
  2. Step 2: Convert to fraction form
    27,938.10/41,907.15 = 7,161.60/x
  3. Step 3: Cross multiply
    27,938.10x = 41,907.15 × 7,161.60
  4. Step 4: Simplify right side
    27,938.10x = 300,122,245.44
  5. Step 5: Solve for x
    x = 300,122,245.44/27,938.10
  6. Step 6: Final answer
    x = 10,742.40

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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.