Home / 21,190.43-31,795.97-8,714.19

Finding the Fourth Proportional to 21,190.43, 31,795.97 and 8,714.19

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Solution

The fourth proportional to 21,190.43, 31,795.97 and 8,714.19 is: 13,075.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.43 : 31,795.97 = 8,714.19 : x
  2. Step 2: Convert to fraction form
    21,190.43/31,795.97 = 8,714.19/x
  3. Step 3: Cross multiply
    21,190.43x = 31,795.97 × 8,714.19
  4. Step 4: Simplify right side
    21,190.43x = 277,076,080.24
  5. Step 5: Solve for x
    x = 277,076,080.24/21,190.43
  6. Step 6: Final answer
    x = 13,075.53

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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.