Home / 20,098.84-27,736.50-11,145.72

Finding the Fourth Proportional to 20,098.84, 27,736.50 and 11,145.72

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Solution

The fourth proportional to 20,098.84, 27,736.50 and 11,145.72 is: 15,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.84 : 27,736.50 = 11,145.72 : x
  2. Step 2: Convert to fraction form
    20,098.84/27,736.50 = 11,145.72/x
  3. Step 3: Cross multiply
    20,098.84x = 27,736.50 × 11,145.72
  4. Step 4: Simplify right side
    20,098.84x = 309,143,262.78
  5. Step 5: Solve for x
    x = 309,143,262.78/20,098.84
  6. Step 6: Final answer
    x = 15,381.15

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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.