Home / 20,409.30-30,608.17-7,926.66

Finding the Fourth Proportional to 20,409.30, 30,608.17 and 7,926.66

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Solution

The fourth proportional to 20,409.30, 30,608.17 and 7,926.66 is: 11,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.30 : 30,608.17 = 7,926.66 : x
  2. Step 2: Convert to fraction form
    20,409.30/30,608.17 = 7,926.66/x
  3. Step 3: Cross multiply
    20,409.30x = 30,608.17 × 7,926.66
  4. Step 4: Simplify right side
    20,409.30x = 242,620,537.00
  5. Step 5: Solve for x
    x = 242,620,537.00/20,409.30
  6. Step 6: Final answer
    x = 11,887.74

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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.