Home / 20,145.24-27,798.48-11,192.20

Finding the Fourth Proportional to 20,145.24, 27,798.48 and 11,192.20

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Solution

The fourth proportional to 20,145.24, 27,798.48 and 11,192.20 is: 15,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.24 : 27,798.48 = 11,192.20 : x
  2. Step 2: Convert to fraction form
    20,145.24/27,798.48 = 11,192.20/x
  3. Step 3: Cross multiply
    20,145.24x = 27,798.48 × 11,192.20
  4. Step 4: Simplify right side
    20,145.24x = 311,126,078.36
  5. Step 5: Solve for x
    x = 311,126,078.36/20,145.24
  6. Step 6: Final answer
    x = 15,444.15

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