Home / 21,629.96-32,446.30-9,147.66

Finding the Fourth Proportional to 21,629.96, 32,446.30 and 9,147.66

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Solution

The fourth proportional to 21,629.96, 32,446.30 and 9,147.66 is: 13,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.96 : 32,446.30 = 9,147.66 : x
  2. Step 2: Convert to fraction form
    21,629.96/32,446.30 = 9,147.66/x
  3. Step 3: Cross multiply
    21,629.96x = 32,446.30 × 9,147.66
  4. Step 4: Simplify right side
    21,629.96x = 296,807,720.66
  5. Step 5: Solve for x
    x = 296,807,720.66/21,629.96
  6. Step 6: Final answer
    x = 13,722.07

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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.