Home / 19,872.60-27,424.92-11,376.04

Finding the Fourth Proportional to 19,872.60, 27,424.92 and 11,376.04

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Solution

The fourth proportional to 19,872.60, 27,424.92 and 11,376.04 is: 15,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.60 : 27,424.92 = 11,376.04 : x
  2. Step 2: Convert to fraction form
    19,872.60/27,424.92 = 11,376.04/x
  3. Step 3: Cross multiply
    19,872.60x = 27,424.92 × 11,376.04
  4. Step 4: Simplify right side
    19,872.60x = 311,986,986.92
  5. Step 5: Solve for x
    x = 311,986,986.92/19,872.60
  6. Step 6: Final answer
    x = 15,699.35

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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.