Home / 20,151.82-30,223.14-7,667.38

Finding the Fourth Proportional to 20,151.82, 30,223.14 and 7,667.38

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Solution

The fourth proportional to 20,151.82, 30,223.14 and 7,667.38 is: 11,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.82 : 30,223.14 = 7,667.38 : x
  2. Step 2: Convert to fraction form
    20,151.82/30,223.14 = 7,667.38/x
  3. Step 3: Cross multiply
    20,151.82x = 30,223.14 × 7,667.38
  4. Step 4: Simplify right side
    20,151.82x = 231,732,299.17
  5. Step 5: Solve for x
    x = 231,732,299.17/20,151.82
  6. Step 6: Final answer
    x = 11,499.32

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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.