Home / 21,455.88-32,183.85-8,969.07

Finding the Fourth Proportional to 21,455.88, 32,183.85 and 8,969.07

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Solution

The fourth proportional to 21,455.88, 32,183.85 and 8,969.07 is: 13,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.88 : 32,183.85 = 8,969.07 : x
  2. Step 2: Convert to fraction form
    21,455.88/32,183.85 = 8,969.07/x
  3. Step 3: Cross multiply
    21,455.88x = 32,183.85 × 8,969.07
  4. Step 4: Simplify right side
    21,455.88x = 288,659,203.52
  5. Step 5: Solve for x
    x = 288,659,203.52/21,455.88
  6. Step 6: Final answer
    x = 13,453.62

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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.