Home / 22,790.92-31,453.05-12,721.33

Finding the Fourth Proportional to 22,790.92, 31,453.05 and 12,721.33

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Solution

The fourth proportional to 22,790.92, 31,453.05 and 12,721.33 is: 17,556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,790.92 : 31,453.05 = 12,721.33 : x
  2. Step 2: Convert to fraction form
    22,790.92/31,453.05 = 12,721.33/x
  3. Step 3: Cross multiply
    22,790.92x = 31,453.05 × 12,721.33
  4. Step 4: Simplify right side
    22,790.92x = 400,124,549.92
  5. Step 5: Solve for x
    x = 400,124,549.92/22,790.92
  6. Step 6: Final answer
    x = 17,556.31

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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.