Home / 29,686-40,955.32-19,619.28

Finding the Fourth Proportional to 29,686, 40,955.32 and 19,619.28

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Solution

The fourth proportional to 29,686, 40,955.32 and 19,619.28 is: 27,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686 : 40,955.32 = 19,619.28 : x
  2. Step 2: Convert to fraction form
    29,686/40,955.32 = 19,619.28/x
  3. Step 3: Cross multiply
    29,686x = 40,955.32 × 19,619.28
  4. Step 4: Simplify right side
    29,686x = 803,513,890.57
  5. Step 5: Solve for x
    x = 803,513,890.57/29,686
  6. Step 6: Final answer
    x = 27,067.10

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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.