Home / 20,677.60-31,006.80-8,984.80

Finding the Fourth Proportional to 20,677.60, 31,006.80 and 8,984.80

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Solution

The fourth proportional to 20,677.60, 31,006.80 and 8,984.80 is: 13,473.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.60 : 31,006.80 = 8,984.80 : x
  2. Step 2: Convert to fraction form
    20,677.60/31,006.80 = 8,984.80/x
  3. Step 3: Cross multiply
    20,677.60x = 31,006.80 × 8,984.80
  4. Step 4: Simplify right side
    20,677.60x = 278,589,896.64
  5. Step 5: Solve for x
    x = 278,589,896.64/20,677.60
  6. Step 6: Final answer
    x = 13,473.03

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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.