Home / 20,233.99-27,912.97-13,521.26

Finding the Fourth Proportional to 20,233.99, 27,912.97 and 13,521.26

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Solution

The fourth proportional to 20,233.99, 27,912.97 and 13,521.26 is: 18,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.99 : 27,912.97 = 13,521.26 : x
  2. Step 2: Convert to fraction form
    20,233.99/27,912.97 = 13,521.26/x
  3. Step 3: Cross multiply
    20,233.99x = 27,912.97 × 13,521.26
  4. Step 4: Simplify right side
    20,233.99x = 377,418,524.74
  5. Step 5: Solve for x
    x = 377,418,524.74/20,233.99
  6. Step 6: Final answer
    x = 18,652.70

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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.