Home / 20,169.96-30,254.85-7,687.14

Finding the Fourth Proportional to 20,169.96, 30,254.85 and 7,687.14

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Solution

The fourth proportional to 20,169.96, 30,254.85 and 7,687.14 is: 11,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.96 : 30,254.85 = 7,687.14 : x
  2. Step 2: Convert to fraction form
    20,169.96/30,254.85 = 7,687.14/x
  3. Step 3: Cross multiply
    20,169.96x = 30,254.85 × 7,687.14
  4. Step 4: Simplify right side
    20,169.96x = 232,573,267.63
  5. Step 5: Solve for x
    x = 232,573,267.63/20,169.96
  6. Step 6: Final answer
    x = 11,530.68

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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.