Home / 20,667.24-30,997.62-7,517.70

Finding the Fourth Proportional to 20,667.24, 30,997.62 and 7,517.70

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Solution

The fourth proportional to 20,667.24, 30,997.62 and 7,517.70 is: 11,275.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.24 : 30,997.62 = 7,517.70 : x
  2. Step 2: Convert to fraction form
    20,667.24/30,997.62 = 7,517.70/x
  3. Step 3: Cross multiply
    20,667.24x = 30,997.62 × 7,517.70
  4. Step 4: Simplify right side
    20,667.24x = 233,030,807.87
  5. Step 5: Solve for x
    x = 233,030,807.87/20,667.24
  6. Step 6: Final answer
    x = 11,275.37

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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.