Home / 20,433.06-28,197.65-11,480.56

Finding the Fourth Proportional to 20,433.06, 28,197.65 and 11,480.56

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Solution

The fourth proportional to 20,433.06, 28,197.65 and 11,480.56 is: 15,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.06 : 28,197.65 = 11,480.56 : x
  2. Step 2: Convert to fraction form
    20,433.06/28,197.65 = 11,480.56/x
  3. Step 3: Cross multiply
    20,433.06x = 28,197.65 × 11,480.56
  4. Step 4: Simplify right side
    20,433.06x = 323,724,684.79
  5. Step 5: Solve for x
    x = 323,724,684.79/20,433.06
  6. Step 6: Final answer
    x = 15,843.18

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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.