Home / 20,227.86-30,352.68-19,491.48

Finding the Fourth Proportional to 20,227.86, 30,352.68 and 19,491.48

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Solution

The fourth proportional to 20,227.86, 30,352.68 and 19,491.48 is: 29,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.86 : 30,352.68 = 19,491.48 : x
  2. Step 2: Convert to fraction form
    20,227.86/30,352.68 = 19,491.48/x
  3. Step 3: Cross multiply
    20,227.86x = 30,352.68 × 19,491.48
  4. Step 4: Simplify right side
    20,227.86x = 591,618,655.17
  5. Step 5: Solve for x
    x = 591,618,655.17/20,227.86
  6. Step 6: Final answer
    x = 29,247.71

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1.5x scale

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.