Home / 42,490.20-63,744.60-20,273.02

Finding the Fourth Proportional to 42,490.20, 63,744.60 and 20,273.02

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Solution

The fourth proportional to 42,490.20, 63,744.60 and 20,273.02 is: 30,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,490.20 : 63,744.60 = 20,273.02 : x
  2. Step 2: Convert to fraction form
    42,490.20/63,744.60 = 20,273.02/x
  3. Step 3: Cross multiply
    42,490.20x = 63,744.60 × 20,273.02
  4. Step 4: Simplify right side
    42,490.20x = 1,292,295,550.69
  5. Step 5: Solve for x
    x = 1,292,295,550.69/42,490.20
  6. Step 6: Final answer
    x = 30,413.97

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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.