Home / 29,271.68-40,400.88-19,843.28

Finding the Fourth Proportional to 29,271.68, 40,400.88 and 19,843.28

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Solution

The fourth proportional to 29,271.68, 40,400.88 and 19,843.28 is: 27,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.68 : 40,400.88 = 19,843.28 : x
  2. Step 2: Convert to fraction form
    29,271.68/40,400.88 = 19,843.28/x
  3. Step 3: Cross multiply
    29,271.68x = 40,400.88 × 19,843.28
  4. Step 4: Simplify right side
    29,271.68x = 801,685,974.09
  5. Step 5: Solve for x
    x = 801,685,974.09/29,271.68
  6. Step 6: Final answer
    x = 27,387.77

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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.