Home / 20,428.00-30,613.28-16,249.48

Finding the Fourth Proportional to 20,428.00, 30,613.28 and 16,249.48

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Solution

The fourth proportional to 20,428.00, 30,613.28 and 16,249.48 is: 24,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.00 : 30,613.28 = 16,249.48 : x
  2. Step 2: Convert to fraction form
    20,428.00/30,613.28 = 16,249.48/x
  3. Step 3: Cross multiply
    20,428.00x = 30,613.28 × 16,249.48
  4. Step 4: Simplify right side
    20,428.00x = 497,449,723.31
  5. Step 5: Solve for x
    x = 497,449,723.31/20,428.00
  6. Step 6: Final answer
    x = 24,351.37

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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.