Home / 19,227.24-28,855.44-12,972.42

Finding the Fourth Proportional to 19,227.24, 28,855.44 and 12,972.42

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Solution

The fourth proportional to 19,227.24, 28,855.44 and 12,972.42 is: 19,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,227.24 : 28,855.44 = 12,972.42 : x
  2. Step 2: Convert to fraction form
    19,227.24/28,855.44 = 12,972.42/x
  3. Step 3: Cross multiply
    19,227.24x = 28,855.44 × 12,972.42
  4. Step 4: Simplify right side
    19,227.24x = 374,324,886.96
  5. Step 5: Solve for x
    x = 374,324,886.96/19,227.24
  6. Step 6: Final answer
    x = 19,468.47

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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.