Home / 22,070.43-30,450.20-13,691.79

Finding the Fourth Proportional to 22,070.43, 30,450.20 and 13,691.79

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Solution

The fourth proportional to 22,070.43, 30,450.20 and 13,691.79 is: 18,890.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.43 : 30,450.20 = 13,691.79 : x
  2. Step 2: Convert to fraction form
    22,070.43/30,450.20 = 13,691.79/x
  3. Step 3: Cross multiply
    22,070.43x = 30,450.20 × 13,691.79
  4. Step 4: Simplify right side
    22,070.43x = 416,917,675.40
  5. Step 5: Solve for x
    x = 416,917,675.40/22,070.43
  6. Step 6: Final answer
    x = 18,890.33

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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.