Home / 28,827-39,781.35-16,251.84

Finding the Fourth Proportional to 28,827, 39,781.35 and 16,251.84

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Solution

The fourth proportional to 28,827, 39,781.35 and 16,251.84 is: 22,427.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827 : 39,781.35 = 16,251.84 : x
  2. Step 2: Convert to fraction form
    28,827/39,781.35 = 16,251.84/x
  3. Step 3: Cross multiply
    28,827x = 39,781.35 × 16,251.84
  4. Step 4: Simplify right side
    28,827x = 646,520,135.18
  5. Step 5: Solve for x
    x = 646,520,135.18/28,827
  6. Step 6: Final answer
    x = 22,427.59

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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.