Home / 20,156.18-30,234.27-7,673.30

Finding the Fourth Proportional to 20,156.18, 30,234.27 and 7,673.30

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Solution

The fourth proportional to 20,156.18, 30,234.27 and 7,673.30 is: 11,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.18 : 30,234.27 = 7,673.30 : x
  2. Step 2: Convert to fraction form
    20,156.18/30,234.27 = 7,673.30/x
  3. Step 3: Cross multiply
    20,156.18x = 30,234.27 × 7,673.30
  4. Step 4: Simplify right side
    20,156.18x = 231,996,623.99
  5. Step 5: Solve for x
    x = 231,996,623.99/20,156.18
  6. Step 6: Final answer
    x = 11,509.95

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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.