Home / 19,742.88-27,257.04-12,300.96

Finding the Fourth Proportional to 19,742.88, 27,257.04 and 12,300.96

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Solution

The fourth proportional to 19,742.88, 27,257.04 and 12,300.96 is: 16,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.88 : 27,257.04 = 12,300.96 : x
  2. Step 2: Convert to fraction form
    19,742.88/27,257.04 = 12,300.96/x
  3. Step 3: Cross multiply
    19,742.88x = 27,257.04 × 12,300.96
  4. Step 4: Simplify right side
    19,742.88x = 335,287,758.76
  5. Step 5: Solve for x
    x = 335,287,758.76/19,742.88
  6. Step 6: Final answer
    x = 16,982.72

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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.