Home / 19,930.74-27,494.13-12,845.94

Finding the Fourth Proportional to 19,930.74, 27,494.13 and 12,845.94

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Solution

The fourth proportional to 19,930.74, 27,494.13 and 12,845.94 is: 17,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.74 : 27,494.13 = 12,845.94 : x
  2. Step 2: Convert to fraction form
    19,930.74/27,494.13 = 12,845.94/x
  3. Step 3: Cross multiply
    19,930.74x = 27,494.13 × 12,845.94
  4. Step 4: Simplify right side
    19,930.74x = 353,187,944.33
  5. Step 5: Solve for x
    x = 353,187,944.33/19,930.74
  6. Step 6: Final answer
    x = 17,720.76

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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.