Home / 34,375.20-51,528-21,734.40

Finding the Fourth Proportional to 34,375.20, 51,528 and 21,734.40

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Solution

The fourth proportional to 34,375.20, 51,528 and 21,734.40 is: 32,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,375.20 : 51,528 = 21,734.40 : x
  2. Step 2: Convert to fraction form
    34,375.20/51,528 = 21,734.40/x
  3. Step 3: Cross multiply
    34,375.20x = 51,528 × 21,734.40
  4. Step 4: Simplify right side
    34,375.20x = 1,119,930,163.20
  5. Step 5: Solve for x
    x = 1,119,930,163.20/34,375.20
  6. Step 6: Final answer
    x = 32,579.60

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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.