Home / 29,957.12-41,372.16-18,785.28

Finding the Fourth Proportional to 29,957.12, 41,372.16 and 18,785.28

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Solution

The fourth proportional to 29,957.12, 41,372.16 and 18,785.28 is: 25,943.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,957.12 : 41,372.16 = 18,785.28 : x
  2. Step 2: Convert to fraction form
    29,957.12/41,372.16 = 18,785.28/x
  3. Step 3: Cross multiply
    29,957.12x = 41,372.16 × 18,785.28
  4. Step 4: Simplify right side
    29,957.12x = 777,187,609.80
  5. Step 5: Solve for x
    x = 777,187,609.80/29,957.12
  6. Step 6: Final answer
    x = 25,943.34

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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.