Home / 21,314.85-31,976.96-6,524.91

Finding the Fourth Proportional to 21,314.85, 31,976.96 and 6,524.91

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Solution

The fourth proportional to 21,314.85, 31,976.96 and 6,524.91 is: 9,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.85 : 31,976.96 = 6,524.91 : x
  2. Step 2: Convert to fraction form
    21,314.85/31,976.96 = 6,524.91/x
  3. Step 3: Cross multiply
    21,314.85x = 31,976.96 × 6,524.91
  4. Step 4: Simplify right side
    21,314.85x = 208,646,786.07
  5. Step 5: Solve for x
    x = 208,646,786.07/21,314.85
  6. Step 6: Final answer
    x = 9,788.80

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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.