Home / 28,819.40-39,769.98-16,072.97

Finding the Fourth Proportional to 28,819.40, 39,769.98 and 16,072.97

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Solution

The fourth proportional to 28,819.40, 39,769.98 and 16,072.97 is: 22,180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.40 : 39,769.98 = 16,072.97 : x
  2. Step 2: Convert to fraction form
    28,819.40/39,769.98 = 16,072.97/x
  3. Step 3: Cross multiply
    28,819.40x = 39,769.98 × 16,072.97
  4. Step 4: Simplify right side
    28,819.40x = 639,221,695.44
  5. Step 5: Solve for x
    x = 639,221,695.44/28,819.40
  6. Step 6: Final answer
    x = 22,180.26

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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.