Home / 25,635.65-38,453.22-8,105.48

Finding the Fourth Proportional to 25,635.65, 38,453.22 and 8,105.48

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Solution

The fourth proportional to 25,635.65, 38,453.22 and 8,105.48 is: 12,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,635.65 : 38,453.22 = 8,105.48 : x
  2. Step 2: Convert to fraction form
    25,635.65/38,453.22 = 8,105.48/x
  3. Step 3: Cross multiply
    25,635.65x = 38,453.22 × 8,105.48
  4. Step 4: Simplify right side
    25,635.65x = 311,681,613.38
  5. Step 5: Solve for x
    x = 311,681,613.38/25,635.65
  6. Step 6: Final answer
    x = 12,158.13

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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.