Home / 28,635.14-39,508.40-18,564

Finding the Fourth Proportional to 28,635.14, 39,508.40 and 18,564

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Solution

The fourth proportional to 28,635.14, 39,508.40 and 18,564 is: 25,613.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.14 : 39,508.40 = 18,564 : x
  2. Step 2: Convert to fraction form
    28,635.14/39,508.40 = 18,564/x
  3. Step 3: Cross multiply
    28,635.14x = 39,508.40 × 18,564
  4. Step 4: Simplify right side
    28,635.14x = 733,433,937.60
  5. Step 5: Solve for x
    x = 733,433,937.60/28,635.14
  6. Step 6: Final answer
    x = 25,613.07

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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.