Home / 22,261.68-30,722.58-12,830.85

Finding the Fourth Proportional to 22,261.68, 30,722.58 and 12,830.85

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Solution

The fourth proportional to 22,261.68, 30,722.58 and 12,830.85 is: 17,707.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.68 : 30,722.58 = 12,830.85 : x
  2. Step 2: Convert to fraction form
    22,261.68/30,722.58 = 12,830.85/x
  3. Step 3: Cross multiply
    22,261.68x = 30,722.58 × 12,830.85
  4. Step 4: Simplify right side
    22,261.68x = 394,196,815.59
  5. Step 5: Solve for x
    x = 394,196,815.59/22,261.68
  6. Step 6: Final answer
    x = 17,707.42

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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.