Home / 20,628.27-28,466.54-11,675.85

Finding the Fourth Proportional to 20,628.27, 28,466.54 and 11,675.85

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Solution

The fourth proportional to 20,628.27, 28,466.54 and 11,675.85 is: 16,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.27 : 28,466.54 = 11,675.85 : x
  2. Step 2: Convert to fraction form
    20,628.27/28,466.54 = 11,675.85/x
  3. Step 3: Cross multiply
    20,628.27x = 28,466.54 × 11,675.85
  4. Step 4: Simplify right side
    20,628.27x = 332,370,929.71
  5. Step 5: Solve for x
    x = 332,370,929.71/20,628.27
  6. Step 6: Final answer
    x = 16,112.40

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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.