Home / 22,921.57-34,371.01-8,128.27

Finding the Fourth Proportional to 22,921.57, 34,371.01 and 8,128.27

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Solution

The fourth proportional to 22,921.57, 34,371.01 and 8,128.27 is: 12,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.57 : 34,371.01 = 8,128.27 : x
  2. Step 2: Convert to fraction form
    22,921.57/34,371.01 = 8,128.27/x
  3. Step 3: Cross multiply
    22,921.57x = 34,371.01 × 8,128.27
  4. Step 4: Simplify right side
    22,921.57x = 279,376,849.45
  5. Step 5: Solve for x
    x = 279,376,849.45/22,921.57
  6. Step 6: Final answer
    x = 12,188.38

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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.