Home / 20,077.14-27,705.60-12,117.54

Finding the Fourth Proportional to 20,077.14, 27,705.60 and 12,117.54

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Solution

The fourth proportional to 20,077.14, 27,705.60 and 12,117.54 is: 16,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.14 : 27,705.60 = 12,117.54 : x
  2. Step 2: Convert to fraction form
    20,077.14/27,705.60 = 12,117.54/x
  3. Step 3: Cross multiply
    20,077.14x = 27,705.60 × 12,117.54
  4. Step 4: Simplify right side
    20,077.14x = 335,723,716.22
  5. Step 5: Solve for x
    x = 335,723,716.22/20,077.14
  6. Step 6: Final answer
    x = 16,721.69

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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.