Home / 22,285.40-30,754.10-12,213.63

Finding the Fourth Proportional to 22,285.40, 30,754.10 and 12,213.63

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Solution

The fourth proportional to 22,285.40, 30,754.10 and 12,213.63 is: 16,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,285.40 : 30,754.10 = 12,213.63 : x
  2. Step 2: Convert to fraction form
    22,285.40/30,754.10 = 12,213.63/x
  3. Step 3: Cross multiply
    22,285.40x = 30,754.10 × 12,213.63
  4. Step 4: Simplify right side
    22,285.40x = 375,619,198.38
  5. Step 5: Solve for x
    x = 375,619,198.38/22,285.40
  6. Step 6: Final answer
    x = 16,854.95

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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.