Home / 31,975.87-47,962.05-9,789.23

Finding the Fourth Proportional to 31,975.87, 47,962.05 and 9,789.23

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Solution

The fourth proportional to 31,975.87, 47,962.05 and 9,789.23 is: 14,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.87 : 47,962.05 = 9,789.23 : x
  2. Step 2: Convert to fraction form
    31,975.87/47,962.05 = 9,789.23/x
  3. Step 3: Cross multiply
    31,975.87x = 47,962.05 × 9,789.23
  4. Step 4: Simplify right side
    31,975.87x = 469,511,538.72
  5. Step 5: Solve for x
    x = 469,511,538.72/31,975.87
  6. Step 6: Final answer
    x = 14,683.31

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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.