Home / 28,647-39,534.08-16,071.75

Finding the Fourth Proportional to 28,647, 39,534.08 and 16,071.75

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Solution

The fourth proportional to 28,647, 39,534.08 and 16,071.75 is: 22,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647 : 39,534.08 = 16,071.75 : x
  2. Step 2: Convert to fraction form
    28,647/39,534.08 = 16,071.75/x
  3. Step 3: Cross multiply
    28,647x = 39,534.08 × 16,071.75
  4. Step 4: Simplify right side
    28,647x = 635,381,769.88
  5. Step 5: Solve for x
    x = 635,381,769.88/28,647
  6. Step 6: Final answer
    x = 22,179.70

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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.