Home / 28,534.63-39,375.24-16,431.88

Finding the Fourth Proportional to 28,534.63, 39,375.24 and 16,431.88

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Solution

The fourth proportional to 28,534.63, 39,375.24 and 16,431.88 is: 22,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.63 : 39,375.24 = 16,431.88 : x
  2. Step 2: Convert to fraction form
    28,534.63/39,375.24 = 16,431.88/x
  3. Step 3: Cross multiply
    28,534.63x = 39,375.24 × 16,431.88
  4. Step 4: Simplify right side
    28,534.63x = 647,009,218.65
  5. Step 5: Solve for x
    x = 647,009,218.65/28,534.63
  6. Step 6: Final answer
    x = 22,674.53

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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.