Home / 26,430.66-39,568.22-17,643.78

Finding the Fourth Proportional to 26,430.66, 39,568.22 and 17,643.78

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Solution

The fourth proportional to 26,430.66, 39,568.22 and 17,643.78 is: 26,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.66 : 39,568.22 = 17,643.78 : x
  2. Step 2: Convert to fraction form
    26,430.66/39,568.22 = 17,643.78/x
  3. Step 3: Cross multiply
    26,430.66x = 39,568.22 × 17,643.78
  4. Step 4: Simplify right side
    26,430.66x = 698,132,968.67
  5. Step 5: Solve for x
    x = 698,132,968.67/26,430.66
  6. Step 6: Final answer
    x = 26,413.75

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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.