Home / 20,634.28-28,474.81-11,683.98

Finding the Fourth Proportional to 20,634.28, 28,474.81 and 11,683.98

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Solution

The fourth proportional to 20,634.28, 28,474.81 and 11,683.98 is: 16,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.28 : 28,474.81 = 11,683.98 : x
  2. Step 2: Convert to fraction form
    20,634.28/28,474.81 = 11,683.98/x
  3. Step 3: Cross multiply
    20,634.28x = 28,474.81 × 11,683.98
  4. Step 4: Simplify right side
    20,634.28x = 332,699,081.33
  5. Step 5: Solve for x
    x = 332,699,081.33/20,634.28
  6. Step 6: Final answer
    x = 16,123.61

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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.