Home / 43,413.91-65,130.41-18,475.11

Finding the Fourth Proportional to 43,413.91, 65,130.41 and 18,475.11

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Solution

The fourth proportional to 43,413.91, 65,130.41 and 18,475.11 is: 27,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,413.91 : 65,130.41 = 18,475.11 : x
  2. Step 2: Convert to fraction form
    43,413.91/65,130.41 = 18,475.11/x
  3. Step 3: Cross multiply
    43,413.91x = 65,130.41 × 18,475.11
  4. Step 4: Simplify right side
    43,413.91x = 1,203,291,535.28
  5. Step 5: Solve for x
    x = 1,203,291,535.28/43,413.91
  6. Step 6: Final answer
    x = 27,716.73

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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.