Home / 31,781.44-47,693.52-17,000.80

Finding the Fourth Proportional to 31,781.44, 47,693.52 and 17,000.80

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Solution

The fourth proportional to 31,781.44, 47,693.52 and 17,000.80 is: 25,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.44 : 47,693.52 = 17,000.80 : x
  2. Step 2: Convert to fraction form
    31,781.44/47,693.52 = 17,000.80/x
  3. Step 3: Cross multiply
    31,781.44x = 47,693.52 × 17,000.80
  4. Step 4: Simplify right side
    31,781.44x = 810,827,994.82
  5. Step 5: Solve for x
    x = 810,827,994.82/31,781.44
  6. Step 6: Final answer
    x = 25,512.63

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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.