Home / 43,218.88-64,853.83-18,257.31

Finding the Fourth Proportional to 43,218.88, 64,853.83 and 18,257.31

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Solution

The fourth proportional to 43,218.88, 64,853.83 and 18,257.31 is: 27,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,218.88 : 64,853.83 = 18,257.31 : x
  2. Step 2: Convert to fraction form
    43,218.88/64,853.83 = 18,257.31/x
  3. Step 3: Cross multiply
    43,218.88x = 64,853.83 × 18,257.31
  4. Step 4: Simplify right side
    43,218.88x = 1,184,056,479.00
  5. Step 5: Solve for x
    x = 1,184,056,479.00/43,218.88
  6. Step 6: Final answer
    x = 27,396.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.