Home / 28,405.96-42,635.16-14,375.88

Finding the Fourth Proportional to 28,405.96, 42,635.16 and 14,375.88

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Solution

The fourth proportional to 28,405.96, 42,635.16 and 14,375.88 is: 21,577.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.96 : 42,635.16 = 14,375.88 : x
  2. Step 2: Convert to fraction form
    28,405.96/42,635.16 = 14,375.88/x
  3. Step 3: Cross multiply
    28,405.96x = 42,635.16 × 14,375.88
  4. Step 4: Simplify right side
    28,405.96x = 612,917,943.94
  5. Step 5: Solve for x
    x = 612,917,943.94/28,405.96
  6. Step 6: Final answer
    x = 21,577.09

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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.