Home / 20,106.10-27,747.69-11,609.79

Finding the Fourth Proportional to 20,106.10, 27,747.69 and 11,609.79

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Solution

The fourth proportional to 20,106.10, 27,747.69 and 11,609.79 is: 16,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.10 : 27,747.69 = 11,609.79 : x
  2. Step 2: Convert to fraction form
    20,106.10/27,747.69 = 11,609.79/x
  3. Step 3: Cross multiply
    20,106.10x = 27,747.69 × 11,609.79
  4. Step 4: Simplify right side
    20,106.10x = 322,144,795.84
  5. Step 5: Solve for x
    x = 322,144,795.84/20,106.10
  6. Step 6: Final answer
    x = 16,022.25

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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.