Home / 30,131.40-45,125.10-16,249.80

Finding the Fourth Proportional to 30,131.40, 45,125.10 and 16,249.80

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Solution

The fourth proportional to 30,131.40, 45,125.10 and 16,249.80 is: 24,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.40 : 45,125.10 = 16,249.80 : x
  2. Step 2: Convert to fraction form
    30,131.40/45,125.10 = 16,249.80/x
  3. Step 3: Cross multiply
    30,131.40x = 45,125.10 × 16,249.80
  4. Step 4: Simplify right side
    30,131.40x = 733,273,849.98
  5. Step 5: Solve for x
    x = 733,273,849.98/30,131.40
  6. Step 6: Final answer
    x = 24,335.87

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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.