Home / 13,589.91-20,387.97-4,824.81

Finding the Fourth Proportional to 13,589.91, 20,387.97 and 4,824.81

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Solution

The fourth proportional to 13,589.91, 20,387.97 and 4,824.81 is: 7,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.91 : 20,387.97 = 4,824.81 : x
  2. Step 2: Convert to fraction form
    13,589.91/20,387.97 = 4,824.81/x
  3. Step 3: Cross multiply
    13,589.91x = 20,387.97 × 4,824.81
  4. Step 4: Simplify right side
    13,589.91x = 98,368,081.54
  5. Step 5: Solve for x
    x = 98,368,081.54/13,589.91
  6. Step 6: Final answer
    x = 7,238.32

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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.