Home / 21,291.39-31,924.53-8,797.41

Finding the Fourth Proportional to 21,291.39, 31,924.53 and 8,797.41

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Solution

The fourth proportional to 21,291.39, 31,924.53 and 8,797.41 is: 13,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.39 : 31,924.53 = 8,797.41 : x
  2. Step 2: Convert to fraction form
    21,291.39/31,924.53 = 8,797.41/x
  3. Step 3: Cross multiply
    21,291.39x = 31,924.53 × 8,797.41
  4. Step 4: Simplify right side
    21,291.39x = 280,853,179.47
  5. Step 5: Solve for x
    x = 280,853,179.47/21,291.39
  6. Step 6: Final answer
    x = 13,190.93

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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.