Home / 21,137.72-29,103.65-17,944.38

Finding the Fourth Proportional to 21,137.72, 29,103.65 and 17,944.38

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Solution

The fourth proportional to 21,137.72, 29,103.65 and 17,944.38 is: 24,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137.72 : 29,103.65 = 17,944.38 : x
  2. Step 2: Convert to fraction form
    21,137.72/29,103.65 = 17,944.38/x
  3. Step 3: Cross multiply
    21,137.72x = 29,103.65 × 17,944.38
  4. Step 4: Simplify right side
    21,137.72x = 522,246,865.27
  5. Step 5: Solve for x
    x = 522,246,865.27/21,137.72
  6. Step 6: Final answer
    x = 24,706.87

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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.