Home / 19,121.39-28,650.34-11,710.27

Finding the Fourth Proportional to 19,121.39, 28,650.34 and 11,710.27

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Solution

The fourth proportional to 19,121.39, 28,650.34 and 11,710.27 is: 17,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.39 : 28,650.34 = 11,710.27 : x
  2. Step 2: Convert to fraction form
    19,121.39/28,650.34 = 11,710.27/x
  3. Step 3: Cross multiply
    19,121.39x = 28,650.34 × 11,710.27
  4. Step 4: Simplify right side
    19,121.39x = 335,503,351.92
  5. Step 5: Solve for x
    x = 335,503,351.92/19,121.39
  6. Step 6: Final answer
    x = 17,545.98

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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.