Home / 26,313.31-39,435.94-19,687.51

Finding the Fourth Proportional to 26,313.31, 39,435.94 and 19,687.51

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Solution

The fourth proportional to 26,313.31, 39,435.94 and 19,687.51 is: 29,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,313.31 : 39,435.94 = 19,687.51 : x
  2. Step 2: Convert to fraction form
    26,313.31/39,435.94 = 19,687.51/x
  3. Step 3: Cross multiply
    26,313.31x = 39,435.94 × 19,687.51
  4. Step 4: Simplify right side
    26,313.31x = 776,395,463.11
  5. Step 5: Solve for x
    x = 776,395,463.11/26,313.31
  6. Step 6: Final answer
    x = 29,505.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.