Home / 27,819.98-38,379.39-16,635.50

Finding the Fourth Proportional to 27,819.98, 38,379.39 and 16,635.50

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Solution

The fourth proportional to 27,819.98, 38,379.39 and 16,635.50 is: 22,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.98 : 38,379.39 = 16,635.50 : x
  2. Step 2: Convert to fraction form
    27,819.98/38,379.39 = 16,635.50/x
  3. Step 3: Cross multiply
    27,819.98x = 38,379.39 × 16,635.50
  4. Step 4: Simplify right side
    27,819.98x = 638,460,342.35
  5. Step 5: Solve for x
    x = 638,460,342.35/27,819.98
  6. Step 6: Final answer
    x = 22,949.71

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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.