Home / 20,542.89-30,814.41-4,960.52

Finding the Fourth Proportional to 20,542.89, 30,814.41 and 4,960.52

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Solution

The fourth proportional to 20,542.89, 30,814.41 and 4,960.52 is: 7,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.89 : 30,814.41 = 4,960.52 : x
  2. Step 2: Convert to fraction form
    20,542.89/30,814.41 = 4,960.52/x
  3. Step 3: Cross multiply
    20,542.89x = 30,814.41 × 4,960.52
  4. Step 4: Simplify right side
    20,542.89x = 152,855,343.02
  5. Step 5: Solve for x
    x = 152,855,343.02/20,542.89
  6. Step 6: Final answer
    x = 7,440.79

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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.