Home / 20,596.68-28,408.32-13,520.52

Finding the Fourth Proportional to 20,596.68, 28,408.32 and 13,520.52

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Solution

The fourth proportional to 20,596.68, 28,408.32 and 13,520.52 is: 18,648.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.68 : 28,408.32 = 13,520.52 : x
  2. Step 2: Convert to fraction form
    20,596.68/28,408.32 = 13,520.52/x
  3. Step 3: Cross multiply
    20,596.68x = 28,408.32 × 13,520.52
  4. Step 4: Simplify right side
    20,596.68x = 384,095,258.73
  5. Step 5: Solve for x
    x = 384,095,258.73/20,596.68
  6. Step 6: Final answer
    x = 18,648.41

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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.