Home / 30,387.83-41,934.11-19,063.42

Finding the Fourth Proportional to 30,387.83, 41,934.11 and 19,063.42

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Solution

The fourth proportional to 30,387.83, 41,934.11 and 19,063.42 is: 26,306.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.83 : 41,934.11 = 19,063.42 : x
  2. Step 2: Convert to fraction form
    30,387.83/41,934.11 = 19,063.42/x
  3. Step 3: Cross multiply
    30,387.83x = 41,934.11 × 19,063.42
  4. Step 4: Simplify right side
    30,387.83x = 799,407,455.94
  5. Step 5: Solve for x
    x = 799,407,455.94/30,387.83
  6. Step 6: Final answer
    x = 26,306.83

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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.