Home / 32,910.43-45,413.34-20,157.79

Finding the Fourth Proportional to 32,910.43, 45,413.34 and 20,157.79

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Solution

The fourth proportional to 32,910.43, 45,413.34 and 20,157.79 is: 27,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,910.43 : 45,413.34 = 20,157.79 : x
  2. Step 2: Convert to fraction form
    32,910.43/45,413.34 = 20,157.79/x
  3. Step 3: Cross multiply
    32,910.43x = 45,413.34 × 20,157.79
  4. Step 4: Simplify right side
    32,910.43x = 915,432,570.92
  5. Step 5: Solve for x
    x = 915,432,570.92/32,910.43
  6. Step 6: Final answer
    x = 27,815.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.