Home / 18,560.30-27,824.81-12,620.55

Finding the Fourth Proportional to 18,560.30, 27,824.81 and 12,620.55

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Solution

The fourth proportional to 18,560.30, 27,824.81 and 12,620.55 is: 18,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.30 : 27,824.81 = 12,620.55 : x
  2. Step 2: Convert to fraction form
    18,560.30/27,824.81 = 12,620.55/x
  3. Step 3: Cross multiply
    18,560.30x = 27,824.81 × 12,620.55
  4. Step 4: Simplify right side
    18,560.30x = 351,164,313.56
  5. Step 5: Solve for x
    x = 351,164,313.56/18,560.30
  6. Step 6: Final answer
    x = 18,920.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.