Home / 20,163.12-30,244.64-5,372.04

Finding the Fourth Proportional to 20,163.12, 30,244.64 and 5,372.04

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Solution

The fourth proportional to 20,163.12, 30,244.64 and 5,372.04 is: 8,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.12 : 30,244.64 = 5,372.04 : x
  2. Step 2: Convert to fraction form
    20,163.12/30,244.64 = 5,372.04/x
  3. Step 3: Cross multiply
    20,163.12x = 30,244.64 × 5,372.04
  4. Step 4: Simplify right side
    20,163.12x = 162,475,415.87
  5. Step 5: Solve for x
    x = 162,475,415.87/20,163.12
  6. Step 6: Final answer
    x = 8,058.05

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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.