Home / 31,708.11-47,520.82-17,667.57

Finding the Fourth Proportional to 31,708.11, 47,520.82 and 17,667.57

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Solution

The fourth proportional to 31,708.11, 47,520.82 and 17,667.57 is: 26,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.11 : 47,520.82 = 17,667.57 : x
  2. Step 2: Convert to fraction form
    31,708.11/47,520.82 = 17,667.57/x
  3. Step 3: Cross multiply
    31,708.11x = 47,520.82 × 17,667.57
  4. Step 4: Simplify right side
    31,708.11x = 839,577,413.81
  5. Step 5: Solve for x
    x = 839,577,413.81/31,708.11
  6. Step 6: Final answer
    x = 26,478.32

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1.5x scale

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.