Home / 20,637.22-28,480.32-11,683.54

Finding the Fourth Proportional to 20,637.22, 28,480.32 and 11,683.54

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Solution

The fourth proportional to 20,637.22, 28,480.32 and 11,683.54 is: 16,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.22 : 28,480.32 = 11,683.54 : x
  2. Step 2: Convert to fraction form
    20,637.22/28,480.32 = 11,683.54/x
  3. Step 3: Cross multiply
    20,637.22x = 28,480.32 × 11,683.54
  4. Step 4: Simplify right side
    20,637.22x = 332,750,957.93
  5. Step 5: Solve for x
    x = 332,750,957.93/20,637.22
  6. Step 6: Final answer
    x = 16,123.83

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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.