Home / 39,456.82-59,188.32-13,161.54

Finding the Fourth Proportional to 39,456.82, 59,188.32 and 13,161.54

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Solution

The fourth proportional to 39,456.82, 59,188.32 and 13,161.54 is: 19,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456.82 : 59,188.32 = 13,161.54 : x
  2. Step 2: Convert to fraction form
    39,456.82/59,188.32 = 13,161.54/x
  3. Step 3: Cross multiply
    39,456.82x = 59,188.32 × 13,161.54
  4. Step 4: Simplify right side
    39,456.82x = 779,009,330.23
  5. Step 5: Solve for x
    x = 779,009,330.23/39,456.82
  6. Step 6: Final answer
    x = 19,743.34

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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.