Home / 19,391.12-29,042.94-8,981

Finding the Fourth Proportional to 19,391.12, 29,042.94 and 8,981

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Solution

The fourth proportional to 19,391.12, 29,042.94 and 8,981 is: 13,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.12 : 29,042.94 = 8,981 : x
  2. Step 2: Convert to fraction form
    19,391.12/29,042.94 = 8,981/x
  3. Step 3: Cross multiply
    19,391.12x = 29,042.94 × 8,981
  4. Step 4: Simplify right side
    19,391.12x = 260,834,644.14
  5. Step 5: Solve for x
    x = 260,834,644.14/19,391.12
  6. Step 6: Final answer
    x = 13,451.24

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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.