Home / 22,138.74-30,576.15-17,163.09

Finding the Fourth Proportional to 22,138.74, 30,576.15 and 17,163.09

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Solution

The fourth proportional to 22,138.74, 30,576.15 and 17,163.09 is: 23,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138.74 : 30,576.15 = 17,163.09 : x
  2. Step 2: Convert to fraction form
    22,138.74/30,576.15 = 17,163.09/x
  3. Step 3: Cross multiply
    22,138.74x = 30,576.15 × 17,163.09
  4. Step 4: Simplify right side
    22,138.74x = 524,781,214.30
  5. Step 5: Solve for x
    x = 524,781,214.30/22,138.74
  6. Step 6: Final answer
    x = 23,704.20

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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.