Home / 21,544.92-29,731.41-12,114.09

Finding the Fourth Proportional to 21,544.92, 29,731.41 and 12,114.09

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Solution

The fourth proportional to 21,544.92, 29,731.41 and 12,114.09 is: 16,717.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.92 : 29,731.41 = 12,114.09 : x
  2. Step 2: Convert to fraction form
    21,544.92/29,731.41 = 12,114.09/x
  3. Step 3: Cross multiply
    21,544.92x = 29,731.41 × 12,114.09
  4. Step 4: Simplify right side
    21,544.92x = 360,168,976.57
  5. Step 5: Solve for x
    x = 360,168,976.57/21,544.92
  6. Step 6: Final answer
    x = 16,717.12

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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.