Home / 18,956.57-28,434.85-10,179.41

Finding the Fourth Proportional to 18,956.57, 28,434.85 and 10,179.41

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Solution

The fourth proportional to 18,956.57, 28,434.85 and 10,179.41 is: 15,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.57 : 28,434.85 = 10,179.41 : x
  2. Step 2: Convert to fraction form
    18,956.57/28,434.85 = 10,179.41/x
  3. Step 3: Cross multiply
    18,956.57x = 28,434.85 × 10,179.41
  4. Step 4: Simplify right side
    18,956.57x = 289,449,828.82
  5. Step 5: Solve for x
    x = 289,449,828.82/18,956.57
  6. Step 6: Final answer
    x = 15,269.11

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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.