Home / 30,630.85-45,934.38-11,908.39

Finding the Fourth Proportional to 30,630.85, 45,934.38 and 11,908.39

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Solution

The fourth proportional to 30,630.85, 45,934.38 and 11,908.39 is: 17,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.85 : 45,934.38 = 11,908.39 : x
  2. Step 2: Convert to fraction form
    30,630.85/45,934.38 = 11,908.39/x
  3. Step 3: Cross multiply
    30,630.85x = 45,934.38 × 11,908.39
  4. Step 4: Simplify right side
    30,630.85x = 547,004,511.45
  5. Step 5: Solve for x
    x = 547,004,511.45/30,630.85
  6. Step 6: Final answer
    x = 17,857.96

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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.