Home / 20,562.32-30,767.72-18,203.60

Finding the Fourth Proportional to 20,562.32, 30,767.72 and 18,203.60

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Solution

The fourth proportional to 20,562.32, 30,767.72 and 18,203.60 is: 27,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.32 : 30,767.72 = 18,203.60 : x
  2. Step 2: Convert to fraction form
    20,562.32/30,767.72 = 18,203.60/x
  3. Step 3: Cross multiply
    20,562.32x = 30,767.72 × 18,203.60
  4. Step 4: Simplify right side
    20,562.32x = 560,083,253.69
  5. Step 5: Solve for x
    x = 560,083,253.69/20,562.32
  6. Step 6: Final answer
    x = 27,238.33

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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.