Home / 28,830.94-39,786.76-16,255.66

Finding the Fourth Proportional to 28,830.94, 39,786.76 and 16,255.66

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Solution

The fourth proportional to 28,830.94, 39,786.76 and 16,255.66 is: 22,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.94 : 39,786.76 = 16,255.66 : x
  2. Step 2: Convert to fraction form
    28,830.94/39,786.76 = 16,255.66/x
  3. Step 3: Cross multiply
    28,830.94x = 39,786.76 × 16,255.66
  4. Step 4: Simplify right side
    28,830.94x = 646,760,043.06
  5. Step 5: Solve for x
    x = 646,760,043.06/28,830.94
  6. Step 6: Final answer
    x = 22,432.85

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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.