Home / 31,680.75-47,511.93-9,488.37

Finding the Fourth Proportional to 31,680.75, 47,511.93 and 9,488.37

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Solution

The fourth proportional to 31,680.75, 47,511.93 and 9,488.37 is: 14,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.75 : 47,511.93 = 9,488.37 : x
  2. Step 2: Convert to fraction form
    31,680.75/47,511.93 = 9,488.37/x
  3. Step 3: Cross multiply
    31,680.75x = 47,511.93 × 9,488.37
  4. Step 4: Simplify right side
    31,680.75x = 450,810,771.25
  5. Step 5: Solve for x
    x = 450,810,771.25/31,680.75
  6. Step 6: Final answer
    x = 14,229.80

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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.