Home / 19,122.92-28,796.72-16,686.80

Finding the Fourth Proportional to 19,122.92, 28,796.72 and 16,686.80

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Solution

The fourth proportional to 19,122.92, 28,796.72 and 16,686.80 is: 25,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.92 : 28,796.72 = 16,686.80 : x
  2. Step 2: Convert to fraction form
    19,122.92/28,796.72 = 16,686.80/x
  3. Step 3: Cross multiply
    19,122.92x = 28,796.72 × 16,686.80
  4. Step 4: Simplify right side
    19,122.92x = 480,525,107.30
  5. Step 5: Solve for x
    x = 480,525,107.30/19,122.92
  6. Step 6: Final answer
    x = 25,128.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.