Home / 22,042.90-30,419.46-11,971.36

Finding the Fourth Proportional to 22,042.90, 30,419.46 and 11,971.36

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Solution

The fourth proportional to 22,042.90, 30,419.46 and 11,971.36 is: 16,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.90 : 30,419.46 = 11,971.36 : x
  2. Step 2: Convert to fraction form
    22,042.90/30,419.46 = 11,971.36/x
  3. Step 3: Cross multiply
    22,042.90x = 30,419.46 × 11,971.36
  4. Step 4: Simplify right side
    22,042.90x = 364,162,306.67
  5. Step 5: Solve for x
    x = 364,162,306.67/22,042.90
  6. Step 6: Final answer
    x = 16,520.62

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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.