Home / 29,022.91-40,053.23-21,839.90

Finding the Fourth Proportional to 29,022.91, 40,053.23 and 21,839.90

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Solution

The fourth proportional to 29,022.91, 40,053.23 and 21,839.90 is: 30,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,022.91 : 40,053.23 = 21,839.90 : x
  2. Step 2: Convert to fraction form
    29,022.91/40,053.23 = 21,839.90/x
  3. Step 3: Cross multiply
    29,022.91x = 40,053.23 × 21,839.90
  4. Step 4: Simplify right side
    29,022.91x = 874,758,310.31
  5. Step 5: Solve for x
    x = 874,758,310.31/29,022.91
  6. Step 6: Final answer
    x = 30,140.27

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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.