Home / 20,584.92-30,817.26-18,615.09

Finding the Fourth Proportional to 20,584.92, 30,817.26 and 18,615.09

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Solution

The fourth proportional to 20,584.92, 30,817.26 and 18,615.09 is: 27,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.92 : 30,817.26 = 18,615.09 : x
  2. Step 2: Convert to fraction form
    20,584.92/30,817.26 = 18,615.09/x
  3. Step 3: Cross multiply
    20,584.92x = 30,817.26 × 18,615.09
  4. Step 4: Simplify right side
    20,584.92x = 573,666,068.45
  5. Step 5: Solve for x
    x = 573,666,068.45/20,584.92
  6. Step 6: Final answer
    x = 27,868.27

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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.