Home / 21,872.64-32,826.24-10,179.84

Finding the Fourth Proportional to 21,872.64, 32,826.24 and 10,179.84

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Solution

The fourth proportional to 21,872.64, 32,826.24 and 10,179.84 is: 15,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872.64 : 32,826.24 = 10,179.84 : x
  2. Step 2: Convert to fraction form
    21,872.64/32,826.24 = 10,179.84/x
  3. Step 3: Cross multiply
    21,872.64x = 32,826.24 × 10,179.84
  4. Step 4: Simplify right side
    21,872.64x = 334,165,871.00
  5. Step 5: Solve for x
    x = 334,165,871.00/21,872.64
  6. Step 6: Final answer
    x = 15,277.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.