Home / 20,250.12-27,935.64-13,173.96

Finding the Fourth Proportional to 20,250.12, 27,935.64 and 13,173.96

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Solution

The fourth proportional to 20,250.12, 27,935.64 and 13,173.96 is: 18,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.12 : 27,935.64 = 13,173.96 : x
  2. Step 2: Convert to fraction form
    20,250.12/27,935.64 = 13,173.96/x
  3. Step 3: Cross multiply
    20,250.12x = 27,935.64 × 13,173.96
  4. Step 4: Simplify right side
    20,250.12x = 368,023,003.93
  5. Step 5: Solve for x
    x = 368,023,003.93/20,250.12
  6. Step 6: Final answer
    x = 18,173.87

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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.