Home / 28,991.52-43,413.45-19,100.81

Finding the Fourth Proportional to 28,991.52, 43,413.45 and 19,100.81

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Solution

The fourth proportional to 28,991.52, 43,413.45 and 19,100.81 is: 28,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.52 : 43,413.45 = 19,100.81 : x
  2. Step 2: Convert to fraction form
    28,991.52/43,413.45 = 19,100.81/x
  3. Step 3: Cross multiply
    28,991.52x = 43,413.45 × 19,100.81
  4. Step 4: Simplify right side
    28,991.52x = 829,232,168.43
  5. Step 5: Solve for x
    x = 829,232,168.43/28,991.52
  6. Step 6: Final answer
    x = 28,602.58

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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.