Home / 19,587.70-27,028.30-11,521.72

Finding the Fourth Proportional to 19,587.70, 27,028.30 and 11,521.72

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Solution

The fourth proportional to 19,587.70, 27,028.30 and 11,521.72 is: 15,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.70 : 27,028.30 = 11,521.72 : x
  2. Step 2: Convert to fraction form
    19,587.70/27,028.30 = 11,521.72/x
  3. Step 3: Cross multiply
    19,587.70x = 27,028.30 × 11,521.72
  4. Step 4: Simplify right side
    19,587.70x = 311,412,340.73
  5. Step 5: Solve for x
    x = 311,412,340.73/19,587.70
  6. Step 6: Final answer
    x = 15,898.37

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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.