Home / 20,531.72-30,797.58-4,949.36

Finding the Fourth Proportional to 20,531.72, 30,797.58 and 4,949.36

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Solution

The fourth proportional to 20,531.72, 30,797.58 and 4,949.36 is: 7,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.72 : 30,797.58 = 4,949.36 : x
  2. Step 2: Convert to fraction form
    20,531.72/30,797.58 = 4,949.36/x
  3. Step 3: Cross multiply
    20,531.72x = 30,797.58 × 4,949.36
  4. Step 4: Simplify right side
    20,531.72x = 152,428,310.55
  5. Step 5: Solve for x
    x = 152,428,310.55/20,531.72
  6. Step 6: Final answer
    x = 7,424.04

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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.