Home / 29,966.91-41,369.88-21,891.50

Finding the Fourth Proportional to 29,966.91, 41,369.88 and 21,891.50

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Solution

The fourth proportional to 29,966.91, 41,369.88 and 21,891.50 is: 30,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,966.91 : 41,369.88 = 21,891.50 : x
  2. Step 2: Convert to fraction form
    29,966.91/41,369.88 = 21,891.50/x
  3. Step 3: Cross multiply
    29,966.91x = 41,369.88 × 21,891.50
  4. Step 4: Simplify right side
    29,966.91x = 905,648,679.32
  5. Step 5: Solve for x
    x = 905,648,679.32/29,966.91
  6. Step 6: Final answer
    x = 30,221.62

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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.