Home / 28,053.96-42,080.81-11,413.86

Finding the Fourth Proportional to 28,053.96, 42,080.81 and 11,413.86

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Solution

The fourth proportional to 28,053.96, 42,080.81 and 11,413.86 is: 17,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.96 : 42,080.81 = 11,413.86 : x
  2. Step 2: Convert to fraction form
    28,053.96/42,080.81 = 11,413.86/x
  3. Step 3: Cross multiply
    28,053.96x = 42,080.81 × 11,413.86
  4. Step 4: Simplify right side
    28,053.96x = 480,304,474.03
  5. Step 5: Solve for x
    x = 480,304,474.03/28,053.96
  6. Step 6: Final answer
    x = 17,120.74

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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.