Home / 21,686.82-29,942.10-14,044.47

Finding the Fourth Proportional to 21,686.82, 29,942.10 and 14,044.47

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Solution

The fourth proportional to 21,686.82, 29,942.10 and 14,044.47 is: 19,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686.82 : 29,942.10 = 14,044.47 : x
  2. Step 2: Convert to fraction form
    21,686.82/29,942.10 = 14,044.47/x
  3. Step 3: Cross multiply
    21,686.82x = 29,942.10 × 14,044.47
  4. Step 4: Simplify right side
    21,686.82x = 420,520,925.19
  5. Step 5: Solve for x
    x = 420,520,925.19/21,686.82
  6. Step 6: Final answer
    x = 19,390.62

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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.