Home / 20,434.08-28,211.94-13,372.44

Finding the Fourth Proportional to 20,434.08, 28,211.94 and 13,372.44

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Solution

The fourth proportional to 20,434.08, 28,211.94 and 13,372.44 is: 18,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.08 : 28,211.94 = 13,372.44 : x
  2. Step 2: Convert to fraction form
    20,434.08/28,211.94 = 13,372.44/x
  3. Step 3: Cross multiply
    20,434.08x = 28,211.94 × 13,372.44
  4. Step 4: Simplify right side
    20,434.08x = 377,262,474.93
  5. Step 5: Solve for x
    x = 377,262,474.93/20,434.08
  6. Step 6: Final answer
    x = 18,462.42

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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.