Home / 13,561.38-20,341.80-3,701.52

Finding the Fourth Proportional to 13,561.38, 20,341.80 and 3,701.52

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Solution

The fourth proportional to 13,561.38, 20,341.80 and 3,701.52 is: 5,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.38 : 20,341.80 = 3,701.52 : x
  2. Step 2: Convert to fraction form
    13,561.38/20,341.80 = 3,701.52/x
  3. Step 3: Cross multiply
    13,561.38x = 20,341.80 × 3,701.52
  4. Step 4: Simplify right side
    13,561.38x = 75,295,579.54
  5. Step 5: Solve for x
    x = 75,295,579.54/13,561.38
  6. Step 6: Final answer
    x = 5,552.21

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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.