Home / 21,992.14-30,353.21-12,560.70

Finding the Fourth Proportional to 21,992.14, 30,353.21 and 12,560.70

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Solution

The fourth proportional to 21,992.14, 30,353.21 and 12,560.70 is: 17,336.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.14 : 30,353.21 = 12,560.70 : x
  2. Step 2: Convert to fraction form
    21,992.14/30,353.21 = 12,560.70/x
  3. Step 3: Cross multiply
    21,992.14x = 30,353.21 × 12,560.70
  4. Step 4: Simplify right side
    21,992.14x = 381,257,596.25
  5. Step 5: Solve for x
    x = 381,257,596.25/21,992.14
  6. Step 6: Final answer
    x = 17,336.09

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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.