Home / 20,068.29-27,680.49-13,769.73

Finding the Fourth Proportional to 20,068.29, 27,680.49 and 13,769.73

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Solution

The fourth proportional to 20,068.29, 27,680.49 and 13,769.73 is: 18,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.29 : 27,680.49 = 13,769.73 : x
  2. Step 2: Convert to fraction form
    20,068.29/27,680.49 = 13,769.73/x
  3. Step 3: Cross multiply
    20,068.29x = 27,680.49 × 13,769.73
  4. Step 4: Simplify right side
    20,068.29x = 381,152,873.57
  5. Step 5: Solve for x
    x = 381,152,873.57/20,068.29
  6. Step 6: Final answer
    x = 18,992.79

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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.