Home / 16,819.27-25,231.67-5,129.75

Finding the Fourth Proportional to 16,819.27, 25,231.67 and 5,129.75

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Solution

The fourth proportional to 16,819.27, 25,231.67 and 5,129.75 is: 7,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,819.27 : 25,231.67 = 5,129.75 : x
  2. Step 2: Convert to fraction form
    16,819.27/25,231.67 = 5,129.75/x
  3. Step 3: Cross multiply
    16,819.27x = 25,231.67 × 5,129.75
  4. Step 4: Simplify right side
    16,819.27x = 129,432,159.18
  5. Step 5: Solve for x
    x = 129,432,159.18/16,819.27
  6. Step 6: Final answer
    x = 7,695.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.