Home / 22,113.90-30,517.20-12,682.80

Finding the Fourth Proportional to 22,113.90, 30,517.20 and 12,682.80

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Solution

The fourth proportional to 22,113.90, 30,517.20 and 12,682.80 is: 17,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,113.90 : 30,517.20 = 12,682.80 : x
  2. Step 2: Convert to fraction form
    22,113.90/30,517.20 = 12,682.80/x
  3. Step 3: Cross multiply
    22,113.90x = 30,517.20 × 12,682.80
  4. Step 4: Simplify right side
    22,113.90x = 387,043,544.16
  5. Step 5: Solve for x
    x = 387,043,544.16/22,113.90
  6. Step 6: Final answer
    x = 17,502.27

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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.