Home / 22,228.85-30,675.86-12,157.34

Finding the Fourth Proportional to 22,228.85, 30,675.86 and 12,157.34

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Solution

The fourth proportional to 22,228.85, 30,675.86 and 12,157.34 is: 16,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.85 : 30,675.86 = 12,157.34 : x
  2. Step 2: Convert to fraction form
    22,228.85/30,675.86 = 12,157.34/x
  3. Step 3: Cross multiply
    22,228.85x = 30,675.86 × 12,157.34
  4. Step 4: Simplify right side
    22,228.85x = 372,936,645.65
  5. Step 5: Solve for x
    x = 372,936,645.65/22,228.85
  6. Step 6: Final answer
    x = 16,777.15

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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.