Home / 25,645.82-38,536.39-13,808.35

Finding the Fourth Proportional to 25,645.82, 38,536.39 and 13,808.35

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Solution

The fourth proportional to 25,645.82, 38,536.39 and 13,808.35 is: 20,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,645.82 : 38,536.39 = 13,808.35 : x
  2. Step 2: Convert to fraction form
    25,645.82/38,536.39 = 13,808.35/x
  3. Step 3: Cross multiply
    25,645.82x = 38,536.39 × 13,808.35
  4. Step 4: Simplify right side
    25,645.82x = 532,123,829.99
  5. Step 5: Solve for x
    x = 532,123,829.99/25,645.82
  6. Step 6: Final answer
    x = 20,748.95

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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.