Home / 19,742.94-27,252.81-12,190.50

Finding the Fourth Proportional to 19,742.94, 27,252.81 and 12,190.50

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Solution

The fourth proportional to 19,742.94, 27,252.81 and 12,190.50 is: 16,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.94 : 27,252.81 = 12,190.50 : x
  2. Step 2: Convert to fraction form
    19,742.94/27,252.81 = 12,190.50/x
  3. Step 3: Cross multiply
    19,742.94x = 27,252.81 × 12,190.50
  4. Step 4: Simplify right side
    19,742.94x = 332,225,380.31
  5. Step 5: Solve for x
    x = 332,225,380.31/19,742.94
  6. Step 6: Final answer
    x = 16,827.55

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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.