Home / 20,790.76-31,191.66-5,999.44

Finding the Fourth Proportional to 20,790.76, 31,191.66 and 5,999.44

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Solution

The fourth proportional to 20,790.76, 31,191.66 and 5,999.44 is: 9,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790.76 : 31,191.66 = 5,999.44 : x
  2. Step 2: Convert to fraction form
    20,790.76/31,191.66 = 5,999.44/x
  3. Step 3: Cross multiply
    20,790.76x = 31,191.66 × 5,999.44
  4. Step 4: Simplify right side
    20,790.76x = 187,132,492.67
  5. Step 5: Solve for x
    x = 187,132,492.67/20,790.76
  6. Step 6: Final answer
    x = 9,000.75

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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.