Home / 29,257.12-40,374.78-15,828.33

Finding the Fourth Proportional to 29,257.12, 40,374.78 and 15,828.33

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Solution

The fourth proportional to 29,257.12, 40,374.78 and 15,828.33 is: 21,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,257.12 : 40,374.78 = 15,828.33 : x
  2. Step 2: Convert to fraction form
    29,257.12/40,374.78 = 15,828.33/x
  3. Step 3: Cross multiply
    29,257.12x = 40,374.78 × 15,828.33
  4. Step 4: Simplify right side
    29,257.12x = 639,065,060.50
  5. Step 5: Solve for x
    x = 639,065,060.50/29,257.12
  6. Step 6: Final answer
    x = 21,843.06

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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.