Home / 28,512-39,344.96-15,764.44

Finding the Fourth Proportional to 28,512, 39,344.96 and 15,764.44

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Solution

The fourth proportional to 28,512, 39,344.96 and 15,764.44 is: 21,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512 : 39,344.96 = 15,764.44 : x
  2. Step 2: Convert to fraction form
    28,512/39,344.96 = 15,764.44/x
  3. Step 3: Cross multiply
    28,512x = 39,344.96 × 15,764.44
  4. Step 4: Simplify right side
    28,512x = 620,251,261.22
  5. Step 5: Solve for x
    x = 620,251,261.22/28,512
  6. Step 6: Final answer
    x = 21,754.04

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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.