Home / 19,620.20-29,305.54-16,854.86

Finding the Fourth Proportional to 19,620.20, 29,305.54 and 16,854.86

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Solution

The fourth proportional to 19,620.20, 29,305.54 and 16,854.86 is: 25,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.20 : 29,305.54 = 16,854.86 : x
  2. Step 2: Convert to fraction form
    19,620.20/29,305.54 = 16,854.86/x
  3. Step 3: Cross multiply
    19,620.20x = 29,305.54 × 16,854.86
  4. Step 4: Simplify right side
    19,620.20x = 493,940,773.92
  5. Step 5: Solve for x
    x = 493,940,773.92/19,620.20
  6. Step 6: Final answer
    x = 25,175.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.