Home / 22,310.95-30,789.96-12,239.81

Finding the Fourth Proportional to 22,310.95, 30,789.96 and 12,239.81

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Solution

The fourth proportional to 22,310.95, 30,789.96 and 12,239.81 is: 16,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.95 : 30,789.96 = 12,239.81 : x
  2. Step 2: Convert to fraction form
    22,310.95/30,789.96 = 12,239.81/x
  3. Step 3: Cross multiply
    22,310.95x = 30,789.96 × 12,239.81
  4. Step 4: Simplify right side
    22,310.95x = 376,863,260.31
  5. Step 5: Solve for x
    x = 376,863,260.31/22,310.95
  6. Step 6: Final answer
    x = 16,891.40

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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.