Home / 28,819.19-39,769.67-16,072.76

Finding the Fourth Proportional to 28,819.19, 39,769.67 and 16,072.76

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Solution

The fourth proportional to 28,819.19, 39,769.67 and 16,072.76 is: 22,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.19 : 39,769.67 = 16,072.76 : x
  2. Step 2: Convert to fraction form
    28,819.19/39,769.67 = 16,072.76/x
  3. Step 3: Cross multiply
    28,819.19x = 39,769.67 × 16,072.76
  4. Step 4: Simplify right side
    28,819.19x = 639,208,202.52
  5. Step 5: Solve for x
    x = 639,208,202.52/28,819.19
  6. Step 6: Final answer
    x = 22,179.95

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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.