Home / 20,222.79-27,912.41-13,060.69

Finding the Fourth Proportional to 20,222.79, 27,912.41 and 13,060.69

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Solution

The fourth proportional to 20,222.79, 27,912.41 and 13,060.69 is: 18,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.79 : 27,912.41 = 13,060.69 : x
  2. Step 2: Convert to fraction form
    20,222.79/27,912.41 = 13,060.69/x
  3. Step 3: Cross multiply
    20,222.79x = 27,912.41 × 13,060.69
  4. Step 4: Simplify right side
    20,222.79x = 364,555,248.06
  5. Step 5: Solve for x
    x = 364,555,248.06/20,222.79
  6. Step 6: Final answer
    x = 18,026.95

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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.