Home / 20,080.02-27,710.16-11,128.02

Finding the Fourth Proportional to 20,080.02, 27,710.16 and 11,128.02

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Solution

The fourth proportional to 20,080.02, 27,710.16 and 11,128.02 is: 15,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.02 : 27,710.16 = 11,128.02 : x
  2. Step 2: Convert to fraction form
    20,080.02/27,710.16 = 11,128.02/x
  3. Step 3: Cross multiply
    20,080.02x = 27,710.16 × 11,128.02
  4. Step 4: Simplify right side
    20,080.02x = 308,359,214.68
  5. Step 5: Solve for x
    x = 308,359,214.68/20,080.02
  6. Step 6: Final answer
    x = 15,356.52

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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.