Home / 30,982.16-46,456.72-12,261.44

Finding the Fourth Proportional to 30,982.16, 46,456.72 and 12,261.44

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Solution

The fourth proportional to 30,982.16, 46,456.72 and 12,261.44 is: 18,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.16 : 46,456.72 = 12,261.44 : x
  2. Step 2: Convert to fraction form
    30,982.16/46,456.72 = 12,261.44/x
  3. Step 3: Cross multiply
    30,982.16x = 46,456.72 × 12,261.44
  4. Step 4: Simplify right side
    30,982.16x = 569,626,284.88
  5. Step 5: Solve for x
    x = 569,626,284.88/30,982.16
  6. Step 6: Final answer
    x = 18,385.62

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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.