Home / 20,441.57-28,201.37-11,487.02

Finding the Fourth Proportional to 20,441.57, 28,201.37 and 11,487.02

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Solution

The fourth proportional to 20,441.57, 28,201.37 and 11,487.02 is: 15,847.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.57 : 28,201.37 = 11,487.02 : x
  2. Step 2: Convert to fraction form
    20,441.57/28,201.37 = 11,487.02/x
  3. Step 3: Cross multiply
    20,441.57x = 28,201.37 × 11,487.02
  4. Step 4: Simplify right side
    20,441.57x = 323,949,502.78
  5. Step 5: Solve for x
    x = 323,949,502.78/20,441.57
  6. Step 6: Final answer
    x = 15,847.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.