Home / 27,420.80-41,147.40-18,087.80

Finding the Fourth Proportional to 27,420.80, 41,147.40 and 18,087.80

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Solution

The fourth proportional to 27,420.80, 41,147.40 and 18,087.80 is: 27,142.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.80 : 41,147.40 = 18,087.80 : x
  2. Step 2: Convert to fraction form
    27,420.80/41,147.40 = 18,087.80/x
  3. Step 3: Cross multiply
    27,420.80x = 41,147.40 × 18,087.80
  4. Step 4: Simplify right side
    27,420.80x = 744,265,941.72
  5. Step 5: Solve for x
    x = 744,265,941.72/27,420.80
  6. Step 6: Final answer
    x = 27,142.39

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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.