Home / 30,871.37-46,301.66-8,679.48

Finding the Fourth Proportional to 30,871.37, 46,301.66 and 8,679.48

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Solution

The fourth proportional to 30,871.37, 46,301.66 and 8,679.48 is: 13,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.37 : 46,301.66 = 8,679.48 : x
  2. Step 2: Convert to fraction form
    30,871.37/46,301.66 = 8,679.48/x
  3. Step 3: Cross multiply
    30,871.37x = 46,301.66 × 8,679.48
  4. Step 4: Simplify right side
    30,871.37x = 401,874,288.54
  5. Step 5: Solve for x
    x = 401,874,288.54/30,871.37
  6. Step 6: Final answer
    x = 13,017.70

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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.