Home / 21,757.02-32,650.11-13,971.30

Finding the Fourth Proportional to 21,757.02, 32,650.11 and 13,971.30

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Solution

The fourth proportional to 21,757.02, 32,650.11 and 13,971.30 is: 20,966.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757.02 : 32,650.11 = 13,971.30 : x
  2. Step 2: Convert to fraction form
    21,757.02/32,650.11 = 13,971.30/x
  3. Step 3: Cross multiply
    21,757.02x = 32,650.11 × 13,971.30
  4. Step 4: Simplify right side
    21,757.02x = 456,164,481.84
  5. Step 5: Solve for x
    x = 456,164,481.84/21,757.02
  6. Step 6: Final answer
    x = 20,966.31

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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.