Home / 20,037.84-27,653.04-12,488.64

Finding the Fourth Proportional to 20,037.84, 27,653.04 and 12,488.64

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Solution

The fourth proportional to 20,037.84, 27,653.04 and 12,488.64 is: 17,234.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.84 : 27,653.04 = 12,488.64 : x
  2. Step 2: Convert to fraction form
    20,037.84/27,653.04 = 12,488.64/x
  3. Step 3: Cross multiply
    20,037.84x = 27,653.04 × 12,488.64
  4. Step 4: Simplify right side
    20,037.84x = 345,348,861.47
  5. Step 5: Solve for x
    x = 345,348,861.47/20,037.84
  6. Step 6: Final answer
    x = 17,234.83

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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.