Home / 13,571.52-20,350.40-4,805.20

Finding the Fourth Proportional to 13,571.52, 20,350.40 and 4,805.20

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Solution

The fourth proportional to 13,571.52, 20,350.40 and 4,805.20 is: 7,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.52 : 20,350.40 = 4,805.20 : x
  2. Step 2: Convert to fraction form
    13,571.52/20,350.40 = 4,805.20/x
  3. Step 3: Cross multiply
    13,571.52x = 20,350.40 × 4,805.20
  4. Step 4: Simplify right side
    13,571.52x = 97,787,742.08
  5. Step 5: Solve for x
    x = 97,787,742.08/13,571.52
  6. Step 6: Final answer
    x = 7,205.36

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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.