Home / 20,088.50-27,720.26-11,135.24

Finding the Fourth Proportional to 20,088.50, 27,720.26 and 11,135.24

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Solution

The fourth proportional to 20,088.50, 27,720.26 and 11,135.24 is: 15,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.50 : 27,720.26 = 11,135.24 : x
  2. Step 2: Convert to fraction form
    20,088.50/27,720.26 = 11,135.24/x
  3. Step 3: Cross multiply
    20,088.50x = 27,720.26 × 11,135.24
  4. Step 4: Simplify right side
    20,088.50x = 308,671,678.66
  5. Step 5: Solve for x
    x = 308,671,678.66/20,088.50
  6. Step 6: Final answer
    x = 15,365.59

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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.