Home / 28,789.43-39,728.88-16,214.18

Finding the Fourth Proportional to 28,789.43, 39,728.88 and 16,214.18

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Solution

The fourth proportional to 28,789.43, 39,728.88 and 16,214.18 is: 22,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.43 : 39,728.88 = 16,214.18 : x
  2. Step 2: Convert to fraction form
    28,789.43/39,728.88 = 16,214.18/x
  3. Step 3: Cross multiply
    28,789.43x = 39,728.88 × 16,214.18
  4. Step 4: Simplify right side
    28,789.43x = 644,171,012.87
  5. Step 5: Solve for x
    x = 644,171,012.87/28,789.43
  6. Step 6: Final answer
    x = 22,375.26

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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.