Home / 13,550.23-20,325.71-3,689.71

Finding the Fourth Proportional to 13,550.23, 20,325.71 and 3,689.71

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Solution

The fourth proportional to 13,550.23, 20,325.71 and 3,689.71 is: 5,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.23 : 20,325.71 = 3,689.71 : x
  2. Step 2: Convert to fraction form
    13,550.23/20,325.71 = 3,689.71/x
  3. Step 3: Cross multiply
    13,550.23x = 20,325.71 × 3,689.71
  4. Step 4: Simplify right side
    13,550.23x = 74,995,975.44
  5. Step 5: Solve for x
    x = 74,995,975.44/13,550.23
  6. Step 6: Final answer
    x = 5,534.66

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1.5x scale

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.