Home / 19,620.66-27,082.44-13,336.68

Finding the Fourth Proportional to 19,620.66, 27,082.44 and 13,336.68

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Solution

The fourth proportional to 19,620.66, 27,082.44 and 13,336.68 is: 18,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.66 : 27,082.44 = 13,336.68 : x
  2. Step 2: Convert to fraction form
    19,620.66/27,082.44 = 13,336.68/x
  3. Step 3: Cross multiply
    19,620.66x = 27,082.44 × 13,336.68
  4. Step 4: Simplify right side
    19,620.66x = 361,189,835.90
  5. Step 5: Solve for x
    x = 361,189,835.90/19,620.66
  6. Step 6: Final answer
    x = 18,408.65

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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.