Home / 19,513.76-29,252.39-13,885.88

Finding the Fourth Proportional to 19,513.76, 29,252.39 and 13,885.88

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Solution

The fourth proportional to 19,513.76, 29,252.39 and 13,885.88 is: 20,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,513.76 : 29,252.39 = 13,885.88 : x
  2. Step 2: Convert to fraction form
    19,513.76/29,252.39 = 13,885.88/x
  3. Step 3: Cross multiply
    19,513.76x = 29,252.39 × 13,885.88
  4. Step 4: Simplify right side
    19,513.76x = 406,194,961.56
  5. Step 5: Solve for x
    x = 406,194,961.56/19,513.76
  6. Step 6: Final answer
    x = 20,815.83

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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.