Home / 20,103.24-30,146.06-8,248.88

Finding the Fourth Proportional to 20,103.24, 30,146.06 and 8,248.88

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Solution

The fourth proportional to 20,103.24, 30,146.06 and 8,248.88 is: 12,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.24 : 30,146.06 = 8,248.88 : x
  2. Step 2: Convert to fraction form
    20,103.24/30,146.06 = 8,248.88/x
  3. Step 3: Cross multiply
    20,103.24x = 30,146.06 × 8,248.88
  4. Step 4: Simplify right side
    20,103.24x = 248,671,231.41
  5. Step 5: Solve for x
    x = 248,671,231.41/20,103.24
  6. Step 6: Final answer
    x = 12,369.71

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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.