Home / 20,306.88-30,462.80-7,156.56

Finding the Fourth Proportional to 20,306.88, 30,462.80 and 7,156.56

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Solution

The fourth proportional to 20,306.88, 30,462.80 and 7,156.56 is: 10,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.88 : 30,462.80 = 7,156.56 : x
  2. Step 2: Convert to fraction form
    20,306.88/30,462.80 = 7,156.56/x
  3. Step 3: Cross multiply
    20,306.88x = 30,462.80 × 7,156.56
  4. Step 4: Simplify right side
    20,306.88x = 218,008,855.97
  5. Step 5: Solve for x
    x = 218,008,855.97/20,306.88
  6. Step 6: Final answer
    x = 10,735.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.