Home / 22,310.43-30,788.80-12,239.38

Finding the Fourth Proportional to 22,310.43, 30,788.80 and 12,239.38

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Solution

The fourth proportional to 22,310.43, 30,788.80 and 12,239.38 is: 16,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.43 : 30,788.80 = 12,239.38 : x
  2. Step 2: Convert to fraction form
    22,310.43/30,788.80 = 12,239.38/x
  3. Step 3: Cross multiply
    22,310.43x = 30,788.80 × 12,239.38
  4. Step 4: Simplify right side
    22,310.43x = 376,835,830.83
  5. Step 5: Solve for x
    x = 376,835,830.83/22,310.43
  6. Step 6: Final answer
    x = 16,890.57

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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.