Home / 39,807.48-54,888.30-31,734.82

Finding the Fourth Proportional to 39,807.48, 54,888.30 and 31,734.82

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Solution

The fourth proportional to 39,807.48, 54,888.30 and 31,734.82 is: 43,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.48 : 54,888.30 = 31,734.82 : x
  2. Step 2: Convert to fraction form
    39,807.48/54,888.30 = 31,734.82/x
  3. Step 3: Cross multiply
    39,807.48x = 54,888.30 × 31,734.82
  4. Step 4: Simplify right side
    39,807.48x = 1,741,870,389.22
  5. Step 5: Solve for x
    x = 1,741,870,389.22/39,807.48
  6. Step 6: Final answer
    x = 43,757.36

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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.