Home / 13,632.18-20,448.20-3,771.38

Finding the Fourth Proportional to 13,632.18, 20,448.20 and 3,771.38

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Solution

The fourth proportional to 13,632.18, 20,448.20 and 3,771.38 is: 5,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.18 : 20,448.20 = 3,771.38 : x
  2. Step 2: Convert to fraction form
    13,632.18/20,448.20 = 3,771.38/x
  3. Step 3: Cross multiply
    13,632.18x = 20,448.20 × 3,771.38
  4. Step 4: Simplify right side
    13,632.18x = 77,117,932.52
  5. Step 5: Solve for x
    x = 77,117,932.52/13,632.18
  6. Step 6: Final answer
    x = 5,657.05

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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.