Home / 30,534.24-42,137.11-17,105.61

Finding the Fourth Proportional to 30,534.24, 42,137.11 and 17,105.61

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Solution

The fourth proportional to 30,534.24, 42,137.11 and 17,105.61 is: 23,605.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.24 : 42,137.11 = 17,105.61 : x
  2. Step 2: Convert to fraction form
    30,534.24/42,137.11 = 17,105.61/x
  3. Step 3: Cross multiply
    30,534.24x = 42,137.11 × 17,105.61
  4. Step 4: Simplify right side
    30,534.24x = 720,780,794.05
  5. Step 5: Solve for x
    x = 720,780,794.05/30,534.24
  6. Step 6: Final answer
    x = 23,605.66

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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.