Home / 22,285.49-30,754.21-12,213.70

Finding the Fourth Proportional to 22,285.49, 30,754.21 and 12,213.70

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Solution

The fourth proportional to 22,285.49, 30,754.21 and 12,213.70 is: 16,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,285.49 : 30,754.21 = 12,213.70 : x
  2. Step 2: Convert to fraction form
    22,285.49/30,754.21 = 12,213.70/x
  3. Step 3: Cross multiply
    22,285.49x = 30,754.21 × 12,213.70
  4. Step 4: Simplify right side
    22,285.49x = 375,622,710.49
  5. Step 5: Solve for x
    x = 375,622,710.49/22,285.49
  6. Step 6: Final answer
    x = 16,855.04

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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.