Home / 20,270.85-30,359.25-19,570.02

Finding the Fourth Proportional to 20,270.85, 30,359.25 and 19,570.02

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Solution

The fourth proportional to 20,270.85, 30,359.25 and 19,570.02 is: 29,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.85 : 30,359.25 = 19,570.02 : x
  2. Step 2: Convert to fraction form
    20,270.85/30,359.25 = 19,570.02/x
  3. Step 3: Cross multiply
    20,270.85x = 30,359.25 × 19,570.02
  4. Step 4: Simplify right side
    20,270.85x = 594,131,129.69
  5. Step 5: Solve for x
    x = 594,131,129.69/20,270.85
  6. Step 6: Final answer
    x = 29,309.63

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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.