Home / 22,551.12-31,112.96-13,111.92

Finding the Fourth Proportional to 22,551.12, 31,112.96 and 13,111.92

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Solution

The fourth proportional to 22,551.12, 31,112.96 and 13,111.92 is: 18,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551.12 : 31,112.96 = 13,111.92 : x
  2. Step 2: Convert to fraction form
    22,551.12/31,112.96 = 13,111.92/x
  3. Step 3: Cross multiply
    22,551.12x = 31,112.96 × 13,111.92
  4. Step 4: Simplify right side
    22,551.12x = 407,950,642.48
  5. Step 5: Solve for x
    x = 407,950,642.48/22,551.12
  6. Step 6: Final answer
    x = 18,090.04

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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.