Home / 31,413.64-47,120.48-10,651.72

Finding the Fourth Proportional to 31,413.64, 47,120.48 and 10,651.72

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Solution

The fourth proportional to 31,413.64, 47,120.48 and 10,651.72 is: 15,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.64 : 47,120.48 = 10,651.72 : x
  2. Step 2: Convert to fraction form
    31,413.64/47,120.48 = 10,651.72/x
  3. Step 3: Cross multiply
    31,413.64x = 47,120.48 × 10,651.72
  4. Step 4: Simplify right side
    31,413.64x = 501,914,159.23
  5. Step 5: Solve for x
    x = 501,914,159.23/31,413.64
  6. Step 6: Final answer
    x = 15,977.59

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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.