Home / 20,433.58-28,211.25-13,371.94

Finding the Fourth Proportional to 20,433.58, 28,211.25 and 13,371.94

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Solution

The fourth proportional to 20,433.58, 28,211.25 and 13,371.94 is: 18,461.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.58 : 28,211.25 = 13,371.94 : x
  2. Step 2: Convert to fraction form
    20,433.58/28,211.25 = 13,371.94/x
  3. Step 3: Cross multiply
    20,433.58x = 28,211.25 × 13,371.94
  4. Step 4: Simplify right side
    20,433.58x = 377,239,142.33
  5. Step 5: Solve for x
    x = 377,239,142.33/20,433.58
  6. Step 6: Final answer
    x = 18,461.73

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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.