Home / 31,998.20-47,975.70-17,007.80

Finding the Fourth Proportional to 31,998.20, 47,975.70 and 17,007.80

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Solution

The fourth proportional to 31,998.20, 47,975.70 and 17,007.80 is: 25,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,998.20 : 47,975.70 = 17,007.80 : x
  2. Step 2: Convert to fraction form
    31,998.20/47,975.70 = 17,007.80/x
  3. Step 3: Cross multiply
    31,998.20x = 47,975.70 × 17,007.80
  4. Step 4: Simplify right side
    31,998.20x = 815,961,110.46
  5. Step 5: Solve for x
    x = 815,961,110.46/31,998.20
  6. Step 6: Final answer
    x = 25,500.22

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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.