Home / 20,166.55-30,249.89-7,015.79

Finding the Fourth Proportional to 20,166.55, 30,249.89 and 7,015.79

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Solution

The fourth proportional to 20,166.55, 30,249.89 and 7,015.79 is: 10,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.55 : 30,249.89 = 7,015.79 : x
  2. Step 2: Convert to fraction form
    20,166.55/30,249.89 = 7,015.79/x
  3. Step 3: Cross multiply
    20,166.55x = 30,249.89 × 7,015.79
  4. Step 4: Simplify right side
    20,166.55x = 212,226,875.76
  5. Step 5: Solve for x
    x = 212,226,875.76/20,166.55
  6. Step 6: Final answer
    x = 10,523.71

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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.