Home / 22,251.09-30,706.52-12,315.09

Finding the Fourth Proportional to 22,251.09, 30,706.52 and 12,315.09

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Solution

The fourth proportional to 22,251.09, 30,706.52 and 12,315.09 is: 16,994.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,251.09 : 30,706.52 = 12,315.09 : x
  2. Step 2: Convert to fraction form
    22,251.09/30,706.52 = 12,315.09/x
  3. Step 3: Cross multiply
    22,251.09x = 30,706.52 × 12,315.09
  4. Step 4: Simplify right side
    22,251.09x = 378,153,610.96
  5. Step 5: Solve for x
    x = 378,153,610.96/22,251.09
  6. Step 6: Final answer
    x = 16,994.83

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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.