Home / 20,584.48-30,870.58-8,738.08

Finding the Fourth Proportional to 20,584.48, 30,870.58 and 8,738.08

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Solution

The fourth proportional to 20,584.48, 30,870.58 and 8,738.08 is: 13,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.48 : 30,870.58 = 8,738.08 : x
  2. Step 2: Convert to fraction form
    20,584.48/30,870.58 = 8,738.08/x
  3. Step 3: Cross multiply
    20,584.48x = 30,870.58 × 8,738.08
  4. Step 4: Simplify right side
    20,584.48x = 269,749,597.69
  5. Step 5: Solve for x
    x = 269,749,597.69/20,584.48
  6. Step 6: Final answer
    x = 13,104.51

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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.