Home / 20,129.27-30,191.18-7,652.44

Finding the Fourth Proportional to 20,129.27, 30,191.18 and 7,652.44

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Solution

The fourth proportional to 20,129.27, 30,191.18 and 7,652.44 is: 11,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.27 : 30,191.18 = 7,652.44 : x
  2. Step 2: Convert to fraction form
    20,129.27/30,191.18 = 7,652.44/x
  3. Step 3: Cross multiply
    20,129.27x = 30,191.18 × 7,652.44
  4. Step 4: Simplify right side
    20,129.27x = 231,036,193.48
  5. Step 5: Solve for x
    x = 231,036,193.48/20,129.27
  6. Step 6: Final answer
    x = 11,477.62

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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.