Home / 30,000.13-41,400.20-16,388.36

Finding the Fourth Proportional to 30,000.13, 41,400.20 and 16,388.36

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Solution

The fourth proportional to 30,000.13, 41,400.20 and 16,388.36 is: 22,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.13 : 41,400.20 = 16,388.36 : x
  2. Step 2: Convert to fraction form
    30,000.13/41,400.20 = 16,388.36/x
  3. Step 3: Cross multiply
    30,000.13x = 41,400.20 × 16,388.36
  4. Step 4: Simplify right side
    30,000.13x = 678,481,092.73
  5. Step 5: Solve for x
    x = 678,481,092.73/30,000.13
  6. Step 6: Final answer
    x = 22,615.94

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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.