Home / 28,211.44-38,930.42-16,887.18

Finding the Fourth Proportional to 28,211.44, 38,930.42 and 16,887.18

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Solution

The fourth proportional to 28,211.44, 38,930.42 and 16,887.18 is: 23,303.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.44 : 38,930.42 = 16,887.18 : x
  2. Step 2: Convert to fraction form
    28,211.44/38,930.42 = 16,887.18/x
  3. Step 3: Cross multiply
    28,211.44x = 38,930.42 × 16,887.18
  4. Step 4: Simplify right side
    28,211.44x = 657,425,198.22
  5. Step 5: Solve for x
    x = 657,425,198.22/28,211.44
  6. Step 6: Final answer
    x = 23,303.50

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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.