Home / 22,163.56-30,585.40-12,732.20

Finding the Fourth Proportional to 22,163.56, 30,585.40 and 12,732.20

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Solution

The fourth proportional to 22,163.56, 30,585.40 and 12,732.20 is: 17,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.56 : 30,585.40 = 12,732.20 : x
  2. Step 2: Convert to fraction form
    22,163.56/30,585.40 = 12,732.20/x
  3. Step 3: Cross multiply
    22,163.56x = 30,585.40 × 12,732.20
  4. Step 4: Simplify right side
    22,163.56x = 389,419,429.88
  5. Step 5: Solve for x
    x = 389,419,429.88/22,163.56
  6. Step 6: Final answer
    x = 17,570.26

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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.