Home / 27,139.96-40,682.04-15,428.44

Finding the Fourth Proportional to 27,139.96, 40,682.04 and 15,428.44

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Solution

The fourth proportional to 27,139.96, 40,682.04 and 15,428.44 is: 23,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.96 : 40,682.04 = 15,428.44 : x
  2. Step 2: Convert to fraction form
    27,139.96/40,682.04 = 15,428.44/x
  3. Step 3: Cross multiply
    27,139.96x = 40,682.04 × 15,428.44
  4. Step 4: Simplify right side
    27,139.96x = 627,660,413.22
  5. Step 5: Solve for x
    x = 627,660,413.22/27,139.96
  6. Step 6: Final answer
    x = 23,126.80

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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.