Home / 20,636.03-28,477.71-11,683.37

Finding the Fourth Proportional to 20,636.03, 28,477.71 and 11,683.37

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Solution

The fourth proportional to 20,636.03, 28,477.71 and 11,683.37 is: 16,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636.03 : 28,477.71 = 11,683.37 : x
  2. Step 2: Convert to fraction form
    20,636.03/28,477.71 = 11,683.37/x
  3. Step 3: Cross multiply
    20,636.03x = 28,477.71 × 11,683.37
  4. Step 4: Simplify right side
    20,636.03x = 332,715,693.88
  5. Step 5: Solve for x
    x = 332,715,693.88/20,636.03
  6. Step 6: Final answer
    x = 16,123.05

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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.