Home / 29,679.68-40,955.52-17,105.28

Finding the Fourth Proportional to 29,679.68, 40,955.52 and 17,105.28

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Solution

The fourth proportional to 29,679.68, 40,955.52 and 17,105.28 is: 23,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,679.68 : 40,955.52 = 17,105.28 : x
  2. Step 2: Convert to fraction form
    29,679.68/40,955.52 = 17,105.28/x
  3. Step 3: Cross multiply
    29,679.68x = 40,955.52 × 17,105.28
  4. Step 4: Simplify right side
    29,679.68x = 700,555,637.15
  5. Step 5: Solve for x
    x = 700,555,637.15/29,679.68
  6. Step 6: Final answer
    x = 23,603.88

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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.