Home / 19,935-27,508.68-11,439.72

Finding the Fourth Proportional to 19,935, 27,508.68 and 11,439.72

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Solution

The fourth proportional to 19,935, 27,508.68 and 11,439.72 is: 15,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935 : 27,508.68 = 11,439.72 : x
  2. Step 2: Convert to fraction form
    19,935/27,508.68 = 11,439.72/x
  3. Step 3: Cross multiply
    19,935x = 27,508.68 × 11,439.72
  4. Step 4: Simplify right side
    19,935x = 314,691,596.77
  5. Step 5: Solve for x
    x = 314,691,596.77/19,935
  6. Step 6: Final answer
    x = 15,785.88

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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.