Home / 21,392.82-32,097.45-8,909.51

Finding the Fourth Proportional to 21,392.82, 32,097.45 and 8,909.51

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Solution

The fourth proportional to 21,392.82, 32,097.45 and 8,909.51 is: 13,367.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.82 : 32,097.45 = 8,909.51 : x
  2. Step 2: Convert to fraction form
    21,392.82/32,097.45 = 8,909.51/x
  3. Step 3: Cross multiply
    21,392.82x = 32,097.45 × 8,909.51
  4. Step 4: Simplify right side
    21,392.82x = 285,972,391.26
  5. Step 5: Solve for x
    x = 285,972,391.26/21,392.82
  6. Step 6: Final answer
    x = 13,367.68

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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.