Home / 47,530.36-71,270.97-20,865.43

Finding the Fourth Proportional to 47,530.36, 71,270.97 and 20,865.43

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Solution

The fourth proportional to 47,530.36, 71,270.97 and 20,865.43 is: 31,287.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,530.36 : 71,270.97 = 20,865.43 : x
  2. Step 2: Convert to fraction form
    47,530.36/71,270.97 = 20,865.43/x
  3. Step 3: Cross multiply
    47,530.36x = 71,270.97 × 20,865.43
  4. Step 4: Simplify right side
    47,530.36x = 1,487,099,435.57
  5. Step 5: Solve for x
    x = 1,487,099,435.57/47,530.36
  6. Step 6: Final answer
    x = 31,287.36

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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.