Home / 22,215.90-30,658.38-12,144.96

Finding the Fourth Proportional to 22,215.90, 30,658.38 and 12,144.96

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Solution

The fourth proportional to 22,215.90, 30,658.38 and 12,144.96 is: 16,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.90 : 30,658.38 = 12,144.96 : x
  2. Step 2: Convert to fraction form
    22,215.90/30,658.38 = 12,144.96/x
  3. Step 3: Cross multiply
    22,215.90x = 30,658.38 × 12,144.96
  4. Step 4: Simplify right side
    22,215.90x = 372,344,798.76
  5. Step 5: Solve for x
    x = 372,344,798.76/22,215.90
  6. Step 6: Final answer
    x = 16,760.28

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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.