Home / 30,072.20-41,493.92-16,642.80

Finding the Fourth Proportional to 30,072.20, 41,493.92 and 16,642.80

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Solution

The fourth proportional to 30,072.20, 41,493.92 and 16,642.80 is: 22,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.20 : 41,493.92 = 16,642.80 : x
  2. Step 2: Convert to fraction form
    30,072.20/41,493.92 = 16,642.80/x
  3. Step 3: Cross multiply
    30,072.20x = 41,493.92 × 16,642.80
  4. Step 4: Simplify right side
    30,072.20x = 690,575,011.78
  5. Step 5: Solve for x
    x = 690,575,011.78/30,072.20
  6. Step 6: Final answer
    x = 22,963.90

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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.