Home / 20,120.67-27,767.73-11,624.35

Finding the Fourth Proportional to 20,120.67, 27,767.73 and 11,624.35

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Solution

The fourth proportional to 20,120.67, 27,767.73 and 11,624.35 is: 16,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.67 : 27,767.73 = 11,624.35 : x
  2. Step 2: Convert to fraction form
    20,120.67/27,767.73 = 11,624.35/x
  3. Step 3: Cross multiply
    20,120.67x = 27,767.73 × 11,624.35
  4. Step 4: Simplify right side
    20,120.67x = 322,781,812.23
  5. Step 5: Solve for x
    x = 322,781,812.23/20,120.67
  6. Step 6: Final answer
    x = 16,042.30

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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.