Home / 20,683.00-28,542.58-11,251.56

Finding the Fourth Proportional to 20,683.00, 28,542.58 and 11,251.56

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Solution

The fourth proportional to 20,683.00, 28,542.58 and 11,251.56 is: 15,527.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.00 : 28,542.58 = 11,251.56 : x
  2. Step 2: Convert to fraction form
    20,683.00/28,542.58 = 11,251.56/x
  3. Step 3: Cross multiply
    20,683.00x = 28,542.58 × 11,251.56
  4. Step 4: Simplify right side
    20,683.00x = 321,148,469.78
  5. Step 5: Solve for x
    x = 321,148,469.78/20,683.00
  6. Step 6: Final answer
    x = 15,527.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.