Home / 19,872.42-27,435.96-13,163.76

Finding the Fourth Proportional to 19,872.42, 27,435.96 and 13,163.76

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Solution

The fourth proportional to 19,872.42, 27,435.96 and 13,163.76 is: 18,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.42 : 27,435.96 = 13,163.76 : x
  2. Step 2: Convert to fraction form
    19,872.42/27,435.96 = 13,163.76/x
  3. Step 3: Cross multiply
    19,872.42x = 27,435.96 × 13,163.76
  4. Step 4: Simplify right side
    19,872.42x = 361,160,392.81
  5. Step 5: Solve for x
    x = 361,160,392.81/19,872.42
  6. Step 6: Final answer
    x = 18,173.95

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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.