Home / 20,080.63-27,709.02-11,125.88

Finding the Fourth Proportional to 20,080.63, 27,709.02 and 11,125.88

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Solution

The fourth proportional to 20,080.63, 27,709.02 and 11,125.88 is: 15,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.63 : 27,709.02 = 11,125.88 : x
  2. Step 2: Convert to fraction form
    20,080.63/27,709.02 = 11,125.88/x
  3. Step 3: Cross multiply
    20,080.63x = 27,709.02 × 11,125.88
  4. Step 4: Simplify right side
    20,080.63x = 308,287,092.89
  5. Step 5: Solve for x
    x = 308,287,092.89/20,080.63
  6. Step 6: Final answer
    x = 15,352.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.