Home / 20,207.39-27,897.77-13,504.37

Finding the Fourth Proportional to 20,207.39, 27,897.77 and 13,504.37

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Solution

The fourth proportional to 20,207.39, 27,897.77 and 13,504.37 is: 18,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.39 : 27,897.77 = 13,504.37 : x
  2. Step 2: Convert to fraction form
    20,207.39/27,897.77 = 13,504.37/x
  3. Step 3: Cross multiply
    20,207.39x = 27,897.77 × 13,504.37
  4. Step 4: Simplify right side
    20,207.39x = 376,741,740.73
  5. Step 5: Solve for x
    x = 376,741,740.73/20,207.39
  6. Step 6: Final answer
    x = 18,643.76

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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.