Home / 19,790.46-27,310.87-10,715.92

Finding the Fourth Proportional to 19,790.46, 27,310.87 and 10,715.92

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Solution

The fourth proportional to 19,790.46, 27,310.87 and 10,715.92 is: 14,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.46 : 27,310.87 = 10,715.92 : x
  2. Step 2: Convert to fraction form
    19,790.46/27,310.87 = 10,715.92/x
  3. Step 3: Cross multiply
    19,790.46x = 27,310.87 × 10,715.92
  4. Step 4: Simplify right side
    19,790.46x = 292,661,098.05
  5. Step 5: Solve for x
    x = 292,661,098.05/19,790.46
  6. Step 6: Final answer
    x = 14,787.99

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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.