Home / 30,805.36-46,174.15-12,081.91

Finding the Fourth Proportional to 30,805.36, 46,174.15 and 12,081.91

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Solution

The fourth proportional to 30,805.36, 46,174.15 and 12,081.91 is: 18,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805.36 : 46,174.15 = 12,081.91 : x
  2. Step 2: Convert to fraction form
    30,805.36/46,174.15 = 12,081.91/x
  3. Step 3: Cross multiply
    30,805.36x = 46,174.15 × 12,081.91
  4. Step 4: Simplify right side
    30,805.36x = 557,871,910.87
  5. Step 5: Solve for x
    x = 557,871,910.87/30,805.36
  6. Step 6: Final answer
    x = 18,109.57

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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.