Home / 30,344.05-41,855.24-20,134.86

Finding the Fourth Proportional to 30,344.05, 41,855.24 and 20,134.86

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Solution

The fourth proportional to 30,344.05, 41,855.24 and 20,134.86 is: 27,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,344.05 : 41,855.24 = 20,134.86 : x
  2. Step 2: Convert to fraction form
    30,344.05/41,855.24 = 20,134.86/x
  3. Step 3: Cross multiply
    30,344.05x = 41,855.24 × 20,134.86
  4. Step 4: Simplify right side
    30,344.05x = 842,749,177.79
  5. Step 5: Solve for x
    x = 842,749,177.79/30,344.05
  6. Step 6: Final answer
    x = 27,773.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.