Home / 20,927.66-28,880.19-11,496.83

Finding the Fourth Proportional to 20,927.66, 28,880.19 and 11,496.83

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Solution

The fourth proportional to 20,927.66, 28,880.19 and 11,496.83 is: 15,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.66 : 28,880.19 = 11,496.83 : x
  2. Step 2: Convert to fraction form
    20,927.66/28,880.19 = 11,496.83/x
  3. Step 3: Cross multiply
    20,927.66x = 28,880.19 × 11,496.83
  4. Step 4: Simplify right side
    20,927.66x = 332,030,634.80
  5. Step 5: Solve for x
    x = 332,030,634.80/20,927.66
  6. Step 6: Final answer
    x = 15,865.64

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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.