Home / 20,154.53-27,815.73-12,199.52

Finding the Fourth Proportional to 20,154.53, 27,815.73 and 12,199.52

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Solution

The fourth proportional to 20,154.53, 27,815.73 and 12,199.52 is: 16,836.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.53 : 27,815.73 = 12,199.52 : x
  2. Step 2: Convert to fraction form
    20,154.53/27,815.73 = 12,199.52/x
  3. Step 3: Cross multiply
    20,154.53x = 27,815.73 × 12,199.52
  4. Step 4: Simplify right side
    20,154.53x = 339,338,554.45
  5. Step 5: Solve for x
    x = 339,338,554.45/20,154.53
  6. Step 6: Final answer
    x = 16,836.84

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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.