Home / 27,930.80-41,909.85-13,141.19

Finding the Fourth Proportional to 27,930.80, 41,909.85 and 13,141.19

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Solution

The fourth proportional to 27,930.80, 41,909.85 and 13,141.19 is: 19,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930.80 : 41,909.85 = 13,141.19 : x
  2. Step 2: Convert to fraction form
    27,930.80/41,909.85 = 13,141.19/x
  3. Step 3: Cross multiply
    27,930.80x = 41,909.85 × 13,141.19
  4. Step 4: Simplify right side
    27,930.80x = 550,745,092.17
  5. Step 5: Solve for x
    x = 550,745,092.17/27,930.80
  6. Step 6: Final answer
    x = 19,718.20

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1.5x scale

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.