Home / 20,032.77-27,650.97-13,231.76

Finding the Fourth Proportional to 20,032.77, 27,650.97 and 13,231.76

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Solution

The fourth proportional to 20,032.77, 27,650.97 and 13,231.76 is: 18,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.77 : 27,650.97 = 13,231.76 : x
  2. Step 2: Convert to fraction form
    20,032.77/27,650.97 = 13,231.76/x
  3. Step 3: Cross multiply
    20,032.77x = 27,650.97 × 13,231.76
  4. Step 4: Simplify right side
    20,032.77x = 365,871,067.93
  5. Step 5: Solve for x
    x = 365,871,067.93/20,032.77
  6. Step 6: Final answer
    x = 18,263.63

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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.