Home / 28,766.57-39,688.35-16,821.44

Finding the Fourth Proportional to 28,766.57, 39,688.35 and 16,821.44

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Solution

The fourth proportional to 28,766.57, 39,688.35 and 16,821.44 is: 23,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.57 : 39,688.35 = 16,821.44 : x
  2. Step 2: Convert to fraction form
    28,766.57/39,688.35 = 16,821.44/x
  3. Step 3: Cross multiply
    28,766.57x = 39,688.35 × 16,821.44
  4. Step 4: Simplify right side
    28,766.57x = 667,615,308.78
  5. Step 5: Solve for x
    x = 667,615,308.78/28,766.57
  6. Step 6: Final answer
    x = 23,208.03

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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.